102122044220 has 24 divisors (see below), whose sum is σ = 245092906464. Its totient is φ = 35013272256.

The previous prime is 102122044187. The next prime is 102122044261. The reversal of 102122044220 is 22440221201.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102122044192 and 102122044201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364721447 + ... + 364721726.

It is an arithmetic number, because the mean of its divisors is an integer number (10212204436).

Almost surely, 2^102122044220 is an apocalyptic number.

102122044220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102122044220 is an abundant number, since it is smaller than the sum of its proper divisors (142970862244).

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

102122044220 is a wasteful number, since it uses less digits than its factorization.

102122044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729443189 (or 729443187 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102122044220 its reverse (22440221201), we get a palindrome (124562265421).

The spelling of 102122044220 in words is "one hundred two billion, one hundred twenty-two million, forty-four thousand, two hundred twenty".