72022222012 has 24 divisors (see below), whose sum is σ = 135778431600. Its totient is φ = 33230190336.

The previous prime is 72022222009. The next prime is 72022222021. The reversal of 72022222012 is 21022222027.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 63562 + ... + 384817.

It is an arithmetic number, because the mean of its divisors is an integer number (5657434650).

Almost surely, 2^72022222012 is an apocalyptic number.

It is an amenable number.

72022222012 is a deficient number, since it is larger than the sum of its proper divisors (63756209588).

72022222012 is a wasteful number, since it uses less digits than its factorization.

72022222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451485 (or 451483 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

Adding to 72022222012 its reverse (21022222027), we get a palindrome (93044444039).

The spelling of 72022222012 in words is "seventy-two billion, twenty-two million, two hundred twenty-two thousand, twelve".