72201531433100 has 36 divisors (see below), whose sum is σ = 156677842215888. Its totient is φ = 28880516904000.

The previous prime is 72201531432977. The next prime is 72201531433183. The reversal of 72201531433100 is 133413510227.

It is a super-2 number, since 2×72201531433100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34420430 + ... + 36457770.

Almost surely, 2^{72201531433100} is an apocalyptic number.

It is an amenable number.

72201531433100 is an abundant number, since it is smaller than the sum of its proper divisors (84476310782788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72201531433100 is a wasteful number, since it uses less digits than its factorization.

72201531433100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391746 (or 2391739 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 72201531433100 its reverse (133413510227), we get a palindrome (72334944943327).

The spelling of 72201531433100 in words is "seventy-two trillion, two hundred one billion, five hundred thirty-one million, four hundred thirty-three thousand, one hundred".