202130221020 has 192 divisors, whose sum is σ = 696874945536. Its totient is φ = 42628700160.

The previous prime is 202130221019. The next prime is 202130221043. The reversal of 202130221020 is 20122031202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15155755 + ... + 15169085.

It is an arithmetic number, because the mean of its divisors is an integer number (3629557008).

Almost surely, 2^202130221020 is an apocalyptic number.

202130221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202130221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348437472768).

202130221020 is an abundant number, since it is smaller than the sum of its proper divisors (494744724516).

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

202130221020 is a wasteful number, since it uses less digits than its factorization.

202130221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140 (or 16138 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202130221020 its reverse (20122031202), we get a palindrome (222252252222).

The spelling of 202130221020 in words is "two hundred two billion, one hundred thirty million, two hundred twenty-one thousand, twenty".