221162115 has 32 divisors (see below), whose sum is σ = 365713920. Its totient is φ = 114057216.

The previous prime is 221162087. The next prime is 221162141. The reversal of 221162115 is 511261122.

221162115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221162115 - 2⁵ = 221162083 is a prime.

It is a super-2 number, since 2×221162115² = 97825362222546450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221162091 and 221162100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64771 + ... + 68099.

It is an arithmetic number, because the mean of its divisors is an integer number (11428560).

Almost surely, 2^221162115 is an apocalyptic number.

221162115 is a deficient number, since it is larger than the sum of its proper divisors (144551805).

221162115 is a wasteful number, since it uses less digits than its factorization.

221162115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its digits is 240, while the sum is 21.

The square root of 221162115 is about 14871.5202652587. The cubic root of 221162115 is about 604.7421572759.

The spelling of 221162115 in words is "two hundred twenty-one million, one hundred sixty-two thousand, one hundred fifteen".