121422002031 has 12 divisors (see below), whose sum is σ = 191331639720. Its totient is φ = 73589092080.

The previous prime is 121422001999. The next prime is 121422002041. The reversal of 121422002031 is 130200224121.

It is a happy number.

It is not a de Polignac number, because 121422002031 - 2⁵ = 121422001999 is a prime.

It is a super-2 number, since 2×121422002031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121422001995 and 121422002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121422002041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613242336 + ... + 613242533.

It is an arithmetic number, because the mean of its divisors is an integer number (15944303310).

Almost surely, 2^121422002031 is an apocalyptic number.

121422002031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121422002031 is a deficient number, since it is larger than the sum of its proper divisors (69909637689).

121422002031 is a wasteful number, since it uses less digits than its factorization.

121422002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226484886 (or 1226484883 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121422002031 its reverse (130200224121), we get a palindrome (251622226152).

The spelling of 121422002031 in words is "one hundred twenty-one billion, four hundred twenty-two million, two thousand, thirty-one".