87990112200221 has 8 divisors (see below), whose sum is σ = 109701958067904. Its totient is φ = 68563723792320.

The previous prime is 87990112200181. The next prime is 87990112200229. The reversal of 87990112200221 is 12200221109978.

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 87990112200221 - 2⁶ = 87990112200157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87990112200229) 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, 571364364860 + ... + 571364365013.

It is an arithmetic number, because the mean of its divisors is an integer number (13712744758488).

Almost surely, 2^{87990112200221} is an apocalyptic number.

It is an amenable number.

87990112200221 is a deficient number, since it is larger than the sum of its proper divisors (21711845867683).

87990112200221 is a wasteful number, since it uses less digits than its factorization.

87990112200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142728729891.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 87990112200221 in words is "eighty-seven trillion, nine hundred ninety billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".