402121124255 has 32 divisors (see below), whose sum is σ = 493192986624. Its totient is φ = 314696745216.

The previous prime is 402121124203. The next prime is 402121124267. The reversal of 402121124255 is 552421121204.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402121124255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15226172 + ... + 15252558.

It is an arithmetic number, because the mean of its divisors is an integer number (15412280832).

Almost surely, 2^402121124255 is an apocalyptic number.

402121124255 is a deficient number, since it is larger than the sum of its proper divisors (91071862369).

402121124255 is a wasteful number, since it uses less digits than its factorization.

402121124255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26855.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 402121124255 its reverse (552421121204), we get a palindrome (954542245459).

The spelling of 402121124255 in words is "four hundred two billion, one hundred twenty-one million, one hundred twenty-four thousand, two hundred fifty-five".