102020221112020 has 24 divisors (see below), whose sum is σ = 214247135176704. Its totient is φ = 40807198760736.

The previous prime is 102020221111979. The next prime is 102020221112057. The reversal of 102020221112020 is 20211122020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102020221111985 and 102020221112003.

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, 54664572 + ... + 56500051.

It is an arithmetic number, because the mean of its divisors is an integer number (8926963965696).

Almost surely, 2^{102020221112020} is an apocalyptic number.

102020221112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020221112020 is an abundant number, since it is smaller than the sum of its proper divisors (112226914064684).

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

102020221112020 is a wasteful number, since it uses less digits than its factorization.

102020221112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111210519 (or 111210517 counting only the distinct ones).

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

Adding to 102020221112020 its reverse (20211122020201), we get a palindrome (122231343132221).

The spelling of 102020221112020 in words is "one hundred two trillion, twenty billion, two hundred twenty-one million, one hundred twelve thousand, twenty".