72222142913 has 2 divisors, whose sum is σ = 72222142914. Its totient is φ = 72222142912.

The previous prime is 72222142843. The next prime is 72222142919. The reversal of 72222142913 is 31924122227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72096546064 + 125596849 = 268508^2 + 11207^2 .

It is a cyclic number.

It is not a de Polignac number, because 72222142913 - 2¹⁰ = 72222141889 is a prime.

It is a super-2 number, since 2×72222142913² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72222142919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36111071456 + 36111071457.

It is an arithmetic number, because the mean of its divisors is an integer number (36111071457).

Almost surely, 2^72222142913 is an apocalyptic number.

It is an amenable number.

72222142913 is a deficient number, since it is larger than the sum of its proper divisors (1).

72222142913 is an equidigital number, since it uses as much as digits as its factorization.

72222142913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The spelling of 72222142913 in words is "seventy-two billion, two hundred twenty-two million, one hundred forty-two thousand, nine hundred thirteen".