121010012231 has 2 divisors, whose sum is σ = 121010012232. Its totient is φ = 121010012230.

The previous prime is 121010012197. The next prime is 121010012239. The reversal of 121010012231 is 132210010121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010012231 is a prime.

It is a super-2 number, since 2×121010012231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010012239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505006115 + 60505006116.

It is an arithmetic number, because the mean of its divisors is an integer number (60505006116).

Almost surely, 2^121010012231 is an apocalyptic number.

121010012231 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010012231 is an equidigital number, since it uses as much as digits as its factorization.

121010012231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121010012231 its reverse (132210010121), we get a palindrome (253220022352).

The spelling of 121010012231 in words is "one hundred twenty-one billion, ten million, twelve thousand, two hundred thirty-one".