172211508214 has 8 divisors (see below), whose sum is σ = 258319179720. Its totient is φ = 86105114976.

The previous prime is 172211508199. The next prime is 172211508251. The reversal of 172211508214 is 412805112271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×172211508214² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172211508214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162957 + ... + 609079.

It is an arithmetic number, because the mean of its divisors is an integer number (32289897465).

Almost surely, 2^172211508214 is an apocalyptic number.

172211508214 is a deficient number, since it is larger than the sum of its proper divisors (86107671506).

172211508214 is a wasteful number, since it uses less digits than its factorization.

172211508214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639134.

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 172211508214 in words is "one hundred seventy-two billion, two hundred eleven million, five hundred eight thousand, two hundred fourteen".