121221111133000 has 64 divisors (see below), whose sum is σ = 284140633795200. Its totient is φ = 48405840395200.

The previous prime is 121221111132943. The next prime is 121221111133061. The reversal of 121221111133000 is 331111122121.

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, 102667780 + ... + 103841779.

It is an arithmetic number, because the mean of its divisors is an integer number (4439697403050).

Almost surely, 2^{121221111133000} is an apocalyptic number.

121221111133000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121221111133000 is an abundant number, since it is smaller than the sum of its proper divisors (162919522662200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121221111133000 is a wasteful number, since it uses less digits than its factorization.

121221111133000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206510167 (or 206510153 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121221111133000 its reverse (331111122121), we get a palindrome (121552222255121).

The spelling of 121221111133000 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred eleven million, one hundred thirty-three thousand".