72122222099 has 2 divisors, whose sum is σ = 72122222100. Its totient is φ = 72122222098.

The previous prime is 72122222063. The next prime is 72122222119. The reversal of 72122222099 is 99022222127.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72122222099 - 2²⁸ = 71853786643 is a prime.

It is a super-2 number, since 2×72122222099² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (72122222299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36061111049 + 36061111050.

It is an arithmetic number, because the mean of its divisors is an integer number (36061111050).

Almost surely, 2^72122222099 is an apocalyptic number.

72122222099 is a deficient number, since it is larger than the sum of its proper divisors (1).

72122222099 is an equidigital number, since it uses as much as digits as its factorization.

72122222099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 72122222099 in words is "seventy-two billion, one hundred twenty-two million, two hundred twenty-two thousand, ninety-nine".