109211572 has 24 divisors (see below), whose sum is σ = 196279776. Its totient is φ = 53141088.

The previous prime is 109211551. The next prime is 109211573. The reversal of 109211572 is 275112901.

It is a super-2 number, since 2×109211572² = 23854334917422368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109211572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109211573) 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, 53523 + ... + 55525.

It is an arithmetic number, because the mean of its divisors is an integer number (8178324).

Almost surely, 2^109211572 is an apocalyptic number.

It is an amenable number.

109211572 is a deficient number, since it is larger than the sum of its proper divisors (87068204).

109211572 is a wasteful number, since it uses less digits than its factorization.

109211572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 109211572 is about 10450.4340579710. The cubic root of 109211572 is about 477.9944853270.

The spelling of 109211572 in words is "one hundred nine million, two hundred eleven thousand, five hundred seventy-two".