2272129973 has 2 divisors, whose sum is σ = 2272129974. Its totient is φ = 2272129972.

The previous prime is 2272129969. The next prime is 2272129997. The reversal of 2272129973 is 3799212722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1446889444 + 825240529 = 38038^2 + 28727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272129973 - 2² = 2272129969 is a prime.

It is a super-2 number, since 2×2272129973² = 10325149228409961458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2272629973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136064986 + 1136064987.

It is an arithmetic number, because the mean of its divisors is an integer number (1136064987).

Almost surely, 2^2272129973 is an apocalyptic number.

It is an amenable number.

2272129973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272129973 is an equidigital number, since it uses as much as digits as its factorization.

2272129973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 2272129973 is about 47666.8645182374. The cubic root of 2272129973 is about 1314.6527581944.

The spelling of 2272129973 in words is "two billion, two hundred seventy-two million, one hundred twenty-nine thousand, nine hundred seventy-three".