211210202121022 has 64 divisors (see below), whose sum is σ = 346734554523840. Its totient is φ = 95903198899200.

The previous prime is 211210202120971. The next prime is 211210202121047. The reversal of 211210202121022 is 220121202012112.

It is a super-2 number, since 2×211210202121022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1928083572 + ... + 1928193112.

It is an arithmetic number, because the mean of its divisors is an integer number (5417727414435).

Almost surely, 2^{211210202121022} is an apocalyptic number.

211210202121022 is a deficient number, since it is larger than the sum of its proper divisors (135524352402818).

211210202121022 is a wasteful number, since it uses less digits than its factorization.

211210202121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112189.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211210202121022 its reverse (220121202012112), we get a palindrome (431331404133134).

The spelling of 211210202121022 in words is "two hundred eleven trillion, two hundred ten billion, two hundred two million, one hundred twenty-one thousand, twenty-two".