102020011021220 has 48 divisors (see below), whose sum is σ = 219363910432128. Its totient is φ = 39843186915840.

The previous prime is 102020011021193. The next prime is 102020011021241. The reversal of 102020011021220 is 22120110020201.

102020011021220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 102020011021195 and 102020011021204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336726176 + ... + 337029015.

It is an arithmetic number, because the mean of its divisors is an integer number (4570081467336).

Almost surely, 2^{102020011021220} is an apocalyptic number.

102020011021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020011021220 is an abundant number, since it is smaller than the sum of its proper divisors (117343899410908).

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

102020011021220 is a wasteful number, since it uses less digits than its factorization.

102020011021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673755380 (or 673755378 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102020011021220 its reverse (22120110020201), we get a palindrome (124140121041421).

The spelling of 102020011021220 in words is "one hundred two trillion, twenty billion, eleven million, twenty-one thousand, two hundred twenty".