12121010100212 has 24 divisors (see below), whose sum is σ = 22875213312000. Its totient is φ = 5586531651936.

The previous prime is 12121010100179. The next prime is 12121010100259. The reversal of 12121010100212 is 21200101012121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162060212 + ... + 162134987.

It is an arithmetic number, because the mean of its divisors is an integer number (953133888000).

Almost surely, 2^{12121010100212} is an apocalyptic number.

It is an amenable number.

12121010100212 is a deficient number, since it is larger than the sum of its proper divisors (10754203211788).

12121010100212 is a wasteful number, since it uses less digits than its factorization.

12121010100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324195935 (or 324195933 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121010100212 its reverse (21200101012121), we get a palindrome (33321111112333).

The spelling of 12121010100212 in words is "twelve trillion, one hundred twenty-one billion, ten million, one hundred thousand, two hundred twelve".