102020220020 has 48 divisors (see below), whose sum is σ = 223594318080. Its totient is φ = 39027369216.

The previous prime is 102020219969. The next prime is 102020220037. The reversal of 102020220020 is 20022020201.

It is a junction number, because it is equal to n+sod(n) for n = 102020219983 and 102020220010.

It is a congruent number.

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, 3499424 + ... + 3528456.

It is an arithmetic number, because the mean of its divisors is an integer number (4658214960).

Almost surely, 2^102020220020 is an apocalyptic number.

102020220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020220020 is an abundant number, since it is smaller than the sum of its proper divisors (121574098060).

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

102020220020 is a wasteful number, since it uses less digits than its factorization.

102020220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36704 (or 36702 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 102020220020 its reverse (20022020201), we get a palindrome (122042240221).

The spelling of 102020220020 in words is "one hundred two billion, twenty million, two hundred twenty thousand, twenty".