210220100020 has 48 divisors (see below), whose sum is σ = 505248202368. Its totient is φ = 71972611200.

The previous prime is 210220100017. The next prime is 210220100021. The reversal of 210220100020 is 20001022012.

210220100020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220100021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972882 + ... + 1169161.

It is an arithmetic number, because the mean of its divisors is an integer number (10526004216).

Almost surely, 2^210220100020 is an apocalyptic number.

210220100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220100020 is an abundant number, since it is smaller than the sum of its proper divisors (295028102348).

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

210220100020 is a wasteful number, since it uses less digits than its factorization.

210220100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142760 (or 2142758 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 210220100020 its reverse (20001022012), we get a palindrome (230221122032).

The spelling of 210220100020 in words is "two hundred ten billion, two hundred twenty million, one hundred thousand, twenty".