102220881 has 16 divisors (see below), whose sum is σ = 164928384. Its totient is φ = 54975744.

The previous prime is 102220843. The next prime is 102220889. The reversal of 102220881 is 188022201.

It is not a de Polignac number, because 102220881 - 2⁷ = 102220753 is a prime.

It is a super-2 number, since 2×102220881² = 20898217024832322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102220889) 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, 142810 + ... + 143523.

It is an arithmetic number, because the mean of its divisors is an integer number (10308024).

Almost surely, 2^102220881 is an apocalyptic number.

It is an amenable number.

102220881 is a deficient number, since it is larger than the sum of its proper divisors (62707503).

102220881 is a wasteful number, since it uses less digits than its factorization.

102220881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286360.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 102220881 is about 10110.4342636704. The cubic root of 102220881 is about 467.5698939414.

The spelling of 102220881 in words is "one hundred two million, two hundred twenty thousand, eight hundred eighty-one".