210221112023100 has 216 divisors, whose sum is σ = 676759285133568. Its totient is φ = 54541916352000.

The previous prime is 210221112023077. The next prime is 210221112023119. The reversal of 210221112023100 is 1320211122012.

210221112023100 is a `hidden beast` number, since 2 + 10 + 221 + 1 + 120 + 2 + 310 + 0 = 666.

It is a super-2 number, since 2×210221112023100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1097372325 + ... + 1097563875.

Almost surely, 2^{210221112023100} is an apocalyptic number.

210221112023100 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 210221112023100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338379642566784).

210221112023100 is an abundant number, since it is smaller than the sum of its proper divisors (466538173110468).

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

210221112023100 is a wasteful number, since it uses less digits than its factorization.

210221112023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224565 (or 224555 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 210221112023100 its reverse (1320211122012), we get a palindrome (211541323145112).

The spelling of 210221112023100 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twelve million, twenty-three thousand, one hundred".