102220220 has 12 divisors (see below), whose sum is σ = 214662504. Its totient is φ = 40888080.

The previous prime is 102220207. The next prime is 102220231. The reversal of 102220220 is 22022201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555486 + ... + 2555525.

It is an arithmetic number, because the mean of its divisors is an integer number (17888542).

Almost surely, 2^102220220 is an apocalyptic number.

102220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102220220 is an abundant number, since it is smaller than the sum of its proper divisors (112442284).

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

102220220 is a wasteful number, since it uses less digits than its factorization.

102220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111020 (or 5111018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102220220 is about 10110.4015746161. The cubic root of 102220220 is about 467.5688861096.

Adding to 102220220 its reverse (22022201), we get a palindrome (124242421).

The spelling of 102220220 in words is "one hundred two million, two hundred twenty thousand, two hundred twenty".