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1220201301 = 311101366097
BaseRepresentation
bin100100010111010…
…1100101101010101
310011001000122111210
41020232230231111
54444332420201
6321025052033
742144353124
oct11056545525
93131018453
101220201301
11576854330
122a0787019
13165a48407
14b80ababb
15721cb1d6
hex48bacb55

1220201301 has 16 divisors (see below), whose sum is σ = 1792415808. Its totient is φ = 732192000.

The previous prime is 1220201291. The next prime is 1220201309. The reversal of 1220201301 is 1031020221.

It is not a de Polignac number, because 1220201301 - 27 = 1220201173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201309) 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, 179716 + ... + 186381.

It is an arithmetic number, because the mean of its divisors is an integer number (112025988).

Almost surely, 21220201301 is an apocalyptic number.

1220201301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1220201301 is a deficient number, since it is larger than the sum of its proper divisors (572214507).

1220201301 is a wasteful number, since it uses less digits than its factorization.

1220201301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366212.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220201301 is about 34931.3798897209. The cubic root of 1220201301 is about 1068.5884963439.

Adding to 1220201301 its reverse (1031020221), we get a palindrome (2251221522).

It can be divided in two parts, 122020 and 1301, that added together give a palindrome (123321).

The spelling of 1220201301 in words is "one billion, two hundred twenty million, two hundred one thousand, three hundred one".

Divisors: 1 3 11 33 101 303 1111 3333 366097 1098291 4027067 12081201 36975797 110927391 406733767 1220201301