121021112211013 has 16 divisors (see below), whose sum is σ = 146448146634624. Its totient is φ = 97628856399360.

The previous prime is 121021112211001. The next prime is 121021112211029. The reversal of 121021112211013 is 310112211120121.

It is a cyclic number.

It is not a de Polignac number, because 121021112211013 - 2²⁹ = 121020575340101 is a prime.

It is a super-2 number, since 2×121021112211013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021112217013) 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 15 ways as a sum of consecutive naturals, for example, 1216423 + ... + 15605188.

It is an arithmetic number, because the mean of its divisors is an integer number (9153009164664).

Almost surely, 2^{121021112211013} is an apocalyptic number.

It is an amenable number.

121021112211013 is a deficient number, since it is larger than the sum of its proper divisors (25427034423611).

121021112211013 is a wasteful number, since it uses less digits than its factorization.

121021112211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16882092.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 121021112211013 its reverse (310112211120121), we get a palindrome (431133323331134).

The spelling of 121021112211013 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twelve million, two hundred eleven thousand, thirteen".