121212110012102 has 16 divisors (see below), whose sum is σ = 185673468326400. Its totient is φ = 59329549897800.

The previous prime is 121212110012053. The next prime is 121212110012173. The reversal of 121212110012102 is 201210011212121.

It is a super-2 number, since 2×121212110012102² (a number of 29 digits) contains 22 as substring.

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, 2148970274 + ... + 2149026677.

It is an arithmetic number, because the mean of its divisors is an integer number (11604591770400).

Almost surely, 2^{121212110012102} is an apocalyptic number.

121212110012102 is a deficient number, since it is larger than the sum of its proper divisors (64461358314298).

121212110012102 is a wasteful number, since it uses less digits than its factorization.

121212110012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297997251.

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

Adding to 121212110012102 its reverse (201210011212121), we get a palindrome (322422121224223).

The spelling of 121212110012102 in words is "one hundred twenty-one trillion, two hundred twelve billion, one hundred ten million, twelve thousand, one hundred two".