210254112100 has 72 divisors (see below), whose sum is σ = 480727044000. Its totient is φ = 79598534400.

The previous prime is 210254112083. The next prime is 210254112161. The reversal of 210254112100 is 1211452012.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1940355 + ... + 2045845.

It is an arithmetic number, because the mean of its divisors is an integer number (6676764500).

Almost surely, 2^210254112100 is an apocalyptic number.

210254112100 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 210254112100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240363522000).

210254112100 is an abundant number, since it is smaller than the sum of its proper divisors (270472931900).

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

210254112100 is a wasteful number, since it uses less digits than its factorization.

210254112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106573 (or 106566 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 210254112100 its reverse (1211452012), we get a palindrome (211465564112).

The spelling of 210254112100 in words is "two hundred ten billion, two hundred fifty-four million, one hundred twelve thousand, one hundred".