211221210001022 has 64 divisors (see below), whose sum is σ = 351071629102656. Its totient is φ = 94707276917760.

The previous prime is 211221210001003. The next prime is 211221210001033. The reversal of 211221210001022 is 220100012122112.

It is a super-2 number, since 2×211221210001022² (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 (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483287948 + ... + 483724800.

It is an arithmetic number, because the mean of its divisors is an integer number (5485494204729).

Almost surely, 2^{211221210001022} is an apocalyptic number.

211221210001022 is a deficient number, since it is larger than the sum of its proper divisors (139850419101634).

211221210001022 is a wasteful number, since it uses less digits than its factorization.

211221210001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440685.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211221210001022 its reverse (220100012122112), we get a palindrome (431321222123134).

The spelling of 211221210001022 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, twenty-two".