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1301222213300 = 225219766051889
BaseRepresentation
bin10010111011110110111…
…000110100011010110100
311121101200102011022200102
4102323312320310122310
5132304400341311200
62433435003533232
7163003333214432
oct22736670643264
94541612138612
101301222213300
11461933020129
1219022882a218
1395921398589
1446d9da1bd52
1523cab39c6d5
hex12ef6e346b4

1301222213300 has 36 divisors (see below), whose sum is σ = 2837985505740. Its totient is φ = 517846801920.

The previous prime is 1301222213287. The next prime is 1301222213309. The reversal of 1301222213300 is 33122221031.

It can be written as a sum of positive squares in 6 ways, for example, as 49535624356 + 1251686588944 = 222566^2 + 1118788^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301222213309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33006245 + ... + 33045644.

It is an arithmetic number, because the mean of its divisors is an integer number (78832930715).

Almost surely, 21301222213300 is an apocalyptic number.

1301222213300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301222213300 is an abundant number, since it is smaller than the sum of its proper divisors (1536763292440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301222213300 is a wasteful number, since it uses less digits than its factorization.

1301222213300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66052100 (or 66052093 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1301222213300 its reverse (33122221031), we get a palindrome (1334344434331).

The spelling of 1301222213300 in words is "one trillion, three hundred one billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 197 394 788 985 1970 3940 4925 9850 19700 66051889 132103778 264207556 330259445 660518890 1321037780 1651297225 3302594450 6605188900 13012222133 26024444266 52048888532 65061110665 130122221330 260244442660 325305553325 650611106650 1301222213300