121012110231 has 16 divisors (see below), whose sum is σ = 168426362880. Its totient is φ = 77138869280.

The previous prime is 121012110221. The next prime is 121012110301. The reversal of 121012110231 is 132011210121.

It is a cyclic number.

It is not a de Polignac number, because 121012110231 - 2¹⁵ = 121012077463 is a prime.

It is a super-2 number, since 2×121012110231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121012110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012110221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130791 + ... + 509048.

It is an arithmetic number, because the mean of its divisors is an integer number (10526647680).

Almost surely, 2^121012110231 is an apocalyptic number.

121012110231 is a deficient number, since it is larger than the sum of its proper divisors (47414252649).

121012110231 is a wasteful number, since it uses less digits than its factorization.

121012110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642606.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121012110231 its reverse (132011210121), we get a palindrome (253023320352).

The spelling of 121012110231 in words is "one hundred twenty-one billion, twelve million, one hundred ten thousand, two hundred thirty-one".