72212107 has 8 divisors (see below), whose sum is σ = 83410992. Its totient is φ = 61785600.

The previous prime is 72212089. The next prime is 72212171. The reversal of 72212107 is 70121227.

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

It is a cyclic number.

It is not a de Polignac number, because 72212107 - 2¹¹ = 72210059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72212207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192894 + ... + 193267.

It is an arithmetic number, because the mean of its divisors is an integer number (10426374).

Almost surely, 2^72212107 is an apocalyptic number.

72212107 is a deficient number, since it is larger than the sum of its proper divisors (11198885).

72212107 is a wasteful number, since it uses less digits than its factorization.

72212107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386189.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 72212107 is about 8497.7707076621. The cubic root of 72212107 is about 416.4248829424.

The spelling of 72212107 in words is "seventy-two million, two hundred twelve thousand, one hundred seven".