72212066210 has 16 divisors (see below), whose sum is σ = 130004230392. Its totient is φ = 28879824000.

The previous prime is 72212066209. The next prime is 72212066239. The reversal of 72212066210 is 1266021227.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71925339721 + 286726489 = 268189^2 + 16933^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564401 + ... + 680420.

Almost surely, 2^72212066210 is an apocalyptic number.

72212066210 is a deficient number, since it is larger than the sum of its proper divisors (57792164182).

72212066210 is a wasteful number, since it uses less digits than its factorization.

72212066210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250629.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 72212066210 its reverse (1266021227), we get a palindrome (73478087437).

The spelling of 72212066210 in words is "seventy-two billion, two hundred twelve million, sixty-six thousand, two hundred ten".