12121102202012 has 12 divisors (see below), whose sum is σ = 21269727027360. Its totient is φ = 6044037337056.

The previous prime is 12121102201981. The next prime is 12121102202017. The reversal of 12121102202012 is 21020220112121.

It is a super-2 number, since 2×12121102202012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121102202017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128439337 + ... + 4128442272.

It is an arithmetic number, because the mean of its divisors is an integer number (1772477252280).

Almost surely, 2^{12121102202012} is an apocalyptic number.

It is an amenable number.

12121102202012 is a deficient number, since it is larger than the sum of its proper divisors (9148624825348).

12121102202012 is a wasteful number, since it uses less digits than its factorization.

12121102202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8256881980 (or 8256881978 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12121102202012 its reverse (21020220112121), we get a palindrome (33141322314133).

The spelling of 12121102202012 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, two hundred two thousand, twelve".