102020221300 has 18 divisors (see below), whose sum is σ = 221383880438. Its totient is φ = 40808088480.

The previous prime is 102020221243. The next prime is 102020221307. The reversal of 102020221300 is 3122020201.

It can be written as a sum of positive squares in 3 ways, for example, as 14543877604 + 87476343696 = 120598^2 + 295764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020221307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510101007 + ... + 510101206.

Almost surely, 2^102020221300 is an apocalyptic number.

102020221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020221300 is an abundant number, since it is smaller than the sum of its proper divisors (119363659138).

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

102020221300 is a wasteful number, since it uses less digits than its factorization.

102020221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020202227 (or 1020202220 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 102020221300 its reverse (3122020201), we get a palindrome (105142241501).

The spelling of 102020221300 in words is "one hundred two billion, twenty million, two hundred twenty-one thousand, three hundred".