102020323211220 has 48 divisors (see below), whose sum is σ = 287574065452800. Its totient is φ = 27022832812416.

The previous prime is 102020323211123. The next prime is 102020323211239. The reversal of 102020323211220 is 22112323020201.

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 15 ways as a sum of consecutive naturals, for example, 5705825692 + ... + 5705843571.

It is an arithmetic number, because the mean of its divisors is an integer number (5991126363600).

Almost surely, 2^{102020323211220} is an apocalyptic number.

102020323211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020323211220 is an abundant number, since it is smaller than the sum of its proper divisors (185553742241580).

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

102020323211220 is a wasteful number, since it uses less digits than its factorization.

102020323211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11411669424 (or 11411669422 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102020323211220 its reverse (22112323020201), we get a palindrome (124132646231421).

The spelling of 102020323211220 in words is "one hundred two trillion, twenty billion, three hundred twenty-three million, two hundred eleven thousand, two hundred twenty".