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2012210201121 = 31961957030587
BaseRepresentation
bin11101010010000001000…
…100110000001000100001
321010100212101111100001020
4131102001010300020201
5230432001302413441
64140221400000053
7265243305334041
oct35220104601041
97110771440036
102012210201121
1170641222269a
12285b91160029
1311799b115453
146d56a387721
153751ee1ee66
hex1d481130221

2012210201121 has 16 divisors (see below), whose sum is σ = 2828717164800. Its totient is φ = 1268816477328.

The previous prime is 2012210201069. The next prime is 2012210201129. The reversal of 2012210201121 is 1211020122102.

It is not a de Polignac number, because 2012210201121 - 27 = 2012210200993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012210201121.

It is not an unprimeable number, because it can be changed into a prime (2012210201129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28480011 + ... + 28550576.

It is an arithmetic number, because the mean of its divisors is an integer number (176794822800).

Almost surely, 22012210201121 is an apocalyptic number.

It is an amenable number.

2012210201121 is a deficient number, since it is larger than the sum of its proper divisors (816506963679).

2012210201121 is a wasteful number, since it uses less digits than its factorization.

2012210201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57031228.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2012210201121 its reverse (1211020122102), we get a palindrome (3223230323223).

The spelling of 2012210201121 in words is "two trillion, twelve billion, two hundred ten million, two hundred one thousand, one hundred twenty-one".

Divisors: 1 3 19 57 619 1857 11761 35283 57030587 171091761 1083581153 3250743459 35301933353 105905800059 670736733707 2012210201121