102210201221020 has 24 divisors (see below), whose sum is σ = 215926700550624. Its totient is φ = 40639265633856.

The previous prime is 102210201220973. The next prime is 102210201221077. The reversal of 102210201221020 is 20122102012201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102210201220985 and 102210201221003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15300924987 + ... + 15300931666.

It is an arithmetic number, because the mean of its divisors is an integer number (8996945856276).

Almost surely, 2^{102210201221020} is an apocalyptic number.

102210201221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102210201221020 is an abundant number, since it is smaller than the sum of its proper divisors (113716499329604).

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

102210201221020 is a wasteful number, since it uses less digits than its factorization.

102210201221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30601856829 (or 30601856827 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102210201221020 its reverse (20122102012201), we get a palindrome (122332303233221).

The spelling of 102210201221020 in words is "one hundred two trillion, two hundred ten billion, two hundred one million, two hundred twenty-one thousand, twenty".