210021102122 has 16 divisors (see below), whose sum is σ = 350208886272. Its totient is φ = 93805950960.

The previous prime is 210021102113. The next prime is 210021102157. The reversal of 210021102122 is 221201120012.

210021102122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210021102097 and 210021102106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130285238 + ... + 130286849.

It is an arithmetic number, because the mean of its divisors is an integer number (21888055392).

Almost surely, 2^210021102122 is an apocalyptic number.

210021102122 is a deficient number, since it is larger than the sum of its proper divisors (140187784150).

210021102122 is a wasteful number, since it uses less digits than its factorization.

210021102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260572133.

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

Adding to 210021102122 its reverse (221201120012), we get a palindrome (431222222134).

The spelling of 210021102122 in words is "two hundred ten billion, twenty-one million, one hundred two thousand, one hundred twenty-two".