72202201073 has 2 divisors, whose sum is σ = 72202201074. Its totient is φ = 72202201072.

The previous prime is 72202201063. The next prime is 72202201103. The reversal of 72202201073 is 37010220227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52430466529 + 19771734544 = 228977^2 + 140612^2 .

It is a cyclic number.

It is not a de Polignac number, because 72202201073 - 2²⁰ = 72201152497 is a prime.

It is not a weakly prime, because it can be changed into another prime (72202201063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36101100536 + 36101100537.

It is an arithmetic number, because the mean of its divisors is an integer number (36101100537).

Almost surely, 2^72202201073 is an apocalyptic number.

It is an amenable number.

72202201073 is a deficient number, since it is larger than the sum of its proper divisors (1).

72202201073 is an equidigital number, since it uses as much as digits as its factorization.

72202201073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The spelling of 72202201073 in words is "seventy-two billion, two hundred two million, two hundred one thousand, seventy-three".