12102121211012 has 48 divisors (see below), whose sum is σ = 25740811367040. Its totient is φ = 4862987062272.

The previous prime is 12102121211003. The next prime is 12102121211023. The reversal of 12102121211012 is 21011212120121.

It is a super-2 number, since 2×12102121211012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117207923 + ... + 117311130.

It is an arithmetic number, because the mean of its divisors is an integer number (536266903480).

Almost surely, 2^{12102121211012} is an apocalyptic number.

It is an amenable number.

12102121211012 is an abundant number, since it is smaller than the sum of its proper divisors (13638690156028).

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

12102121211012 is a wasteful number, since it uses less digits than its factorization.

12102121211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234519180 (or 234519178 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12102121211012 its reverse (21011212120121), we get a palindrome (33113333331133).

The spelling of 12102121211012 in words is "twelve trillion, one hundred two billion, one hundred twenty-one million, two hundred eleven thousand, twelve".