210021200100022 has 16 divisors (see below), whose sum is σ = 315592822368432. Its totient is φ = 104823594374400.

The previous prime is 210021200099981. The next prime is 210021200100031. The reversal of 210021200100022 is 220001002120012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210021200099975 and 210021200100011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463912078 + ... + 464364574.

It is an arithmetic number, because the mean of its divisors is an integer number (19724551398027).

Almost surely, 2^{210021200100022} is an apocalyptic number.

210021200100022 is a deficient number, since it is larger than the sum of its proper divisors (105571622268410).

210021200100022 is a wasteful number, since it uses less digits than its factorization.

210021200100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865263.

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

Adding to 210021200100022 its reverse (220001002120012), we get a palindrome (430022202220034).

The spelling of 210021200100022 in words is "two hundred ten trillion, twenty-one billion, two hundred million, one hundred thousand, twenty-two".