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2100220111010 = 257231304484541
BaseRepresentation
bin11110100011111110110…
…111111010100010100010
321102210000221122222202102
4132203332313322202202
5233402222322023020
64244454445450402
7304510261251440
oct36437667724242
97383027588672
102100220111010
1173a77555560a
1229b053570a02
1312308584cbc8
1473918c49b90
15399716e5475
hex1e8fedfa8a2

2100220111010 has 32 divisors (see below), whose sum is σ = 4508298577152. Its totient is φ = 688767837120.

The previous prime is 2100220110983. The next prime is 2100220111013. The reversal of 2100220111010 is 101110220012.

It is a junction number, because it is equal to n+sod(n) for n = 2100220110982 and 2100220111000.

It is not an unprimeable number, because it can be changed into a prime (2100220111013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652240661 + ... + 652243880.

It is an arithmetic number, because the mean of its divisors is an integer number (140884330536).

Almost surely, 22100220111010 is an apocalyptic number.

2100220111010 is an abundant number, since it is smaller than the sum of its proper divisors (2408078466142).

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

2100220111010 is a wasteful number, since it uses less digits than its factorization.

2100220111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304484578.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100220111010 its reverse (101110220012), we get a palindrome (2201330331022).

The spelling of 2100220111010 in words is "two trillion, one hundred billion, two hundred twenty million, one hundred eleven thousand, ten".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 1304484541 2608969082 6522422705 9131391787 13044845410 18262783574 30003144443 45656958935 60006288886 91313917870 150015722215 210022011101 300031444430 420044022202 1050110055505 2100220111010