72220211201 has 4 divisors (see below), whose sum is σ = 72221780400. Its totient is φ = 72218642004.

The previous prime is 72220211113. The next prime is 72220211207. The reversal of 72220211201 is 10211202227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72220211201 - 2²² = 72216016897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72220211207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713411 + ... + 808328.

It is an arithmetic number, because the mean of its divisors is an integer number (18055445100).

Almost surely, 2^72220211201 is an apocalyptic number.

It is an amenable number.

72220211201 is a deficient number, since it is larger than the sum of its proper divisors (1569199).

72220211201 is a wasteful number, since it uses less digits than its factorization.

72220211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569198.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 72220211201 its reverse (10211202227), we get a palindrome (82431413428).

The spelling of 72220211201 in words is "seventy-two billion, two hundred twenty million, two hundred eleven thousand, two hundred one".