121200211331 has 8 divisors (see below), whose sum is σ = 121370496000. Its totient is φ = 121030031880.

The previous prime is 121200211283. The next prime is 121200211337. The reversal of 121200211331 is 133112002121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121200211331 - 2²² = 121196017027 is a prime.

It is a super-2 number, since 2×121200211331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121200211337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438870 + ... + 2488068.

It is an arithmetic number, because the mean of its divisors is an integer number (15171312000).

Almost surely, 2^121200211331 is an apocalyptic number.

121200211331 is a deficient number, since it is larger than the sum of its proper divisors (170284669).

121200211331 is a wasteful number, since it uses less digits than its factorization.

121200211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52609.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121200211331 its reverse (133112002121), we get a palindrome (254312213452).

The spelling of 121200211331 in words is "one hundred twenty-one billion, two hundred million, two hundred eleven thousand, three hundred thirty-one".