108292780221 has 16 divisors (see below), whose sum is σ = 149880821760. Its totient is φ = 69475984560.

The previous prime is 108292780217. The next prime is 108292780223. The reversal of 108292780221 is 122087292801.

It is not a de Polignac number, because 108292780221 - 2² = 108292780217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108292780223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235975 + ... + 3269268.

It is an arithmetic number, because the mean of its divisors is an integer number (9367551360).

Almost surely, 2^108292780221 is an apocalyptic number.

It is an amenable number.

108292780221 is a deficient number, since it is larger than the sum of its proper divisors (41588041539).

108292780221 is a wasteful number, since it uses less digits than its factorization.

108292780221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505456.

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 108292780221 in words is "one hundred eight billion, two hundred ninety-two million, seven hundred eighty thousand, two hundred twenty-one".