220102100 has 36 divisors (see below), whose sum is σ = 479073504. Its totient is φ = 87773280.

The previous prime is 220102027. The next prime is 220102117. The reversal of 220102100 is 1201022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31529 + ... + 37871.

Almost surely, 2^220102100 is an apocalyptic number.

220102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220102100 is an abundant number, since it is smaller than the sum of its proper divisors (258971404).

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

220102100 is a wasteful number, since it uses less digits than its factorization.

220102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704 (or 6697 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 220102100 is about 14835.8383652559. The cubic root of 220102100 is about 603.7744468695.

Adding to 220102100 its reverse (1201022), we get a palindrome (221303122).

The spelling of 220102100 in words is "two hundred twenty million, one hundred two thousand, one hundred".