221115410515380 has 96 divisors (see below), whose sum is σ = 651819868076160. Its totient is φ = 55851196170240.

The previous prime is 221115410515379. The next prime is 221115410515381. The reversal of 221115410515380 is 83515014511122.

It is an interprime number because it is at equal distance from previous prime (221115410515379) and next prime (221115410515381).

It is a super-3 number, since 3×221115410515380³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221115410515381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9881061 + ... + 23235020.

It is an arithmetic number, because the mean of its divisors is an integer number (6789790292460).

Almost surely, 2^{221115410515380} is an apocalyptic number.

221115410515380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221115410515380 is an abundant number, since it is smaller than the sum of its proper divisors (430704457560780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221115410515380 is a wasteful number, since it uses less digits than its factorization.

221115410515380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33121969 (or 33121967 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 39.

The spelling of 221115410515380 in words is "two hundred twenty-one trillion, one hundred fifteen billion, four hundred ten million, five hundred fifteen thousand, three hundred eighty".