2012101212121 has 32 divisors (see below), whose sum is σ = 2725470252288. Its totient is φ = 1434457866240.

The previous prime is 2012101212101. The next prime is 2012101212167. The reversal of 2012101212121 is 1212121012102.

It is not a de Polignac number, because 2012101212121 - 2¹⁵ = 2012101179353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012101212095 and 2012101212104.

It is not an unprimeable number, because it can be changed into a prime (2012101212101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8781096 + ... + 9007321.

It is an arithmetic number, because the mean of its divisors is an integer number (85170945384).

Almost surely, 2^{2012101212121} is an apocalyptic number.

It is an amenable number.

2012101212121 is a deficient number, since it is larger than the sum of its proper divisors (713369040167).

2012101212121 is a wasteful number, since it uses less digits than its factorization.

2012101212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17788561.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2012101212121 its reverse (1212121012102), we get a palindrome (3224222224223).

It can be divided in two parts, 2012101 and 212121, that added together give a palindrome (2224222).

The spelling of 2012101212121 in words is "two trillion, twelve billion, one hundred one million, two hundred twelve thousand, one hundred twenty-one".