121026233421 has 24 divisors (see below), whose sum is σ = 187931752320. Its totient is φ = 74811283776.

The previous prime is 121026233407. The next prime is 121026233441. The reversal of 121026233421 is 124332620121.

121026233421 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 2 + 6 + 233 + 421 = 666.

It is not a de Polignac number, because 121026233421 - 2⁵ = 121026233389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121026233441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7521280 + ... + 7537353.

It is an arithmetic number, because the mean of its divisors is an integer number (7830489680).

Almost surely, 2^121026233421 is an apocalyptic number.

It is an amenable number.

121026233421 is a deficient number, since it is larger than the sum of its proper divisors (66905518899).

121026233421 is a wasteful number, since it uses less digits than its factorization.

121026233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058705 (or 15058702 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 121026233421 its reverse (124332620121), we get a palindrome (245358853542).

The spelling of 121026233421 in words is "one hundred twenty-one billion, twenty-six million, two hundred thirty-three thousand, four hundred twenty-one".