121021100120012 has 48 divisors (see below), whose sum is σ = 212804571168000. Its totient is φ = 60220591596864.

The previous prime is 121021100120009. The next prime is 121021100120023. The reversal of 121021100120012 is 210021001120121.

It is a super-2 number, since 2×121021100120012² (a number of 29 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, 1498728623 + ... + 1498809369.

It is an arithmetic number, because the mean of its divisors is an integer number (4433428566000).

Almost surely, 2^{121021100120012} is an apocalyptic number.

It is an amenable number.

121021100120012 is a deficient number, since it is larger than the sum of its proper divisors (91783471047988).

121021100120012 is a wasteful number, since it uses less digits than its factorization.

121021100120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83198 (or 83196 counting only the distinct ones).

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

Adding to 121021100120012 its reverse (210021001120121), we get a palindrome (331042101240133).

The spelling of 121021100120012 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred million, one hundred twenty thousand, twelve".