722138223213 has 32 divisors (see below), whose sum is σ = 1167194332800. Its totient is φ = 437621184000.

The previous prime is 722138223211. The next prime is 722138223217. The reversal of 722138223213 is 312322831227.

722138223213 is a `hidden beast` number, since 7 + 2 + 213 + 8 + 223 + 213 = 666.

It is not a de Polignac number, because 722138223213 - 2¹ = 722138223211 is a prime.

It is a super-2 number, since 2×722138223213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722138223211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3493533 + ... + 3694461.

It is an arithmetic number, because the mean of its divisors is an integer number (36474822900).

Almost surely, 2^722138223213 is an apocalyptic number.

It is an amenable number.

722138223213 is a deficient number, since it is larger than the sum of its proper divisors (445056109587).

722138223213 is a wasteful number, since it uses less digits than its factorization.

722138223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213050 (or 213044 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The spelling of 722138223213 in words is "seven hundred twenty-two billion, one hundred thirty-eight million, two hundred twenty-three thousand, two hundred thirteen".