72226537201 has 16 divisors (see below), whose sum is σ = 91296749824. Its totient is φ = 55601774784.

The previous prime is 72226537199. The next prime is 72226537213. The reversal of 72226537201 is 10273562227.

It is a cyclic number.

It is not a de Polignac number, because 72226537201 - 2¹ = 72226537199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (72226537231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10722285 + ... + 10729018.

It is an arithmetic number, because the mean of its divisors is an integer number (5706046864).

Almost surely, 2^72226537201 is an apocalyptic number.

It is an amenable number.

72226537201 is a deficient number, since it is larger than the sum of its proper divisors (19070212623).

72226537201 is a wasteful number, since it uses less digits than its factorization.

72226537201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21451360.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 72226537201 in words is "seventy-two billion, two hundred twenty-six million, five hundred thirty-seven thousand, two hundred one".