724002122122 has 64 divisors (see below), whose sum is σ = 1165570560000. Its totient is φ = 336656069568.

The previous prime is 724002122113. The next prime is 724002122149. The reversal of 724002122122 is 221221200427.

It is a happy 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, 123991279 + ... + 123997117.

It is an arithmetic number, because the mean of its divisors is an integer number (18212040000).

Almost surely, 2^724002122122 is an apocalyptic number.

724002122122 is a deficient number, since it is larger than the sum of its proper divisors (441568437878).

724002122122 is a wasteful number, since it uses less digits than its factorization.

724002122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 724002122122 its reverse (221221200427), we get a palindrome (945223322549).

The spelling of 724002122122 in words is "seven hundred twenty-four billion, two million, one hundred twenty-two thousand, one hundred twenty-two".