72011022 has 16 divisors (see below), whose sum is σ = 150284160. Its totient is φ = 22959992.

The previous prime is 72011021. The next prime is 72011039. The reversal of 72011022 is 22011027.

It is a junction number, because it is equal to n+sod(n) for n = 72010992 and 72011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72011021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260772 + ... + 261047.

It is an arithmetic number, because the mean of its divisors is an integer number (9392760).

Almost surely, 2^72011022 is an apocalyptic number.

72011022 is an abundant number, since it is smaller than the sum of its proper divisors (78273138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72011022 is a wasteful number, since it uses less digits than its factorization.

72011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521847.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 72011022 is about 8485.9308269629. The cubic root of 72011022 is about 416.0379919383.

Adding to 72011022 its reverse (22011027), we get a palindrome (94022049).

The spelling of 72011022 in words is "seventy-two million, eleven thousand, twenty-two".