109372408221 has 16 divisors (see below), whose sum is σ = 150397920000. Its totient is φ = 70647409728.

The previous prime is 109372408219. The next prime is 109372408247. The reversal of 109372408221 is 122804273901.

It is not a de Polignac number, because 109372408221 - 2¹ = 109372408219 is a prime.

It is a super-2 number, since 2×109372408221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 109372408221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109372478221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034846 + ... + 2087903.

It is an arithmetic number, because the mean of its divisors is an integer number (9399870000).

Almost surely, 2^109372408221 is an apocalyptic number.

It is an amenable number.

109372408221 is a deficient number, since it is larger than the sum of its proper divisors (41025511779).

109372408221 is a wasteful number, since it uses less digits than its factorization.

109372408221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123028.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 109372408221 in words is "one hundred nine billion, three hundred seventy-two million, four hundred eight thousand, two hundred twenty-one".