210000221022100 has 72 divisors (see below), whose sum is σ = 456868979291648. Its totient is φ = 83784950121600.

The previous prime is 210000221022079. The next prime is 210000221022127. The reversal of 210000221022100 is 1220122000012.

It is a happy number.

It is a congruent number.

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, 64762465 + ... + 67927735.

Almost surely, 2^{210000221022100} is an apocalyptic number.

210000221022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210000221022100 is an abundant number, since it is smaller than the sum of its proper divisors (246868758269548).

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

210000221022100 is a wasteful number, since it uses less digits than its factorization.

210000221022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166985 (or 3166978 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210000221022100 its reverse (1220122000012), we get a palindrome (211220343022112).

The spelling of 210000221022100 in words is "two hundred ten trillion, two hundred twenty-one million, twenty-two thousand, one hundred".