210221000100212 has 12 divisors (see below), whose sum is σ = 370783496240640. Its totient is φ = 104282858317176.

The previous prime is 210221000100193. The next prime is 210221000100227. The reversal of 210221000100212 is 212001000122012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206910432662 + ... + 206910433677.

It is an arithmetic number, because the mean of its divisors is an integer number (30898624686720).

Almost surely, 2^{210221000100212} is an apocalyptic number.

It is an amenable number.

210221000100212 is a deficient number, since it is larger than the sum of its proper divisors (160562496140428).

210221000100212 is a wasteful number, since it uses less digits than its factorization.

210221000100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413820866470 (or 413820866468 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210221000100212 its reverse (212001000122012), we get a palindrome (422222000222224).

The spelling of 210221000100212 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred thousand, two hundred twelve".