212111200220022 has 48 divisors (see below), whose sum is σ = 463195235543040. Its totient is φ = 70147352948400.

The previous prime is 212111200220009. The next prime is 212111200220093. The reversal of 212111200220022 is 220022002111212.

It is a happy number.

212111200220022 is a `hidden beast` number, since 212 + 1 + 11 + 200 + 220 + 0 + 22 = 666.

It is a super-2 number, since 2×212111200220022² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212111200219977 and 212111200220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25135554 + ... + 32496437.

It is an arithmetic number, because the mean of its divisors is an integer number (9649900740480).

Almost surely, 2^{212111200220022} is an apocalyptic number.

212111200220022 is an abundant number, since it is smaller than the sum of its proper divisors (251084035323018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111200220022 is a wasteful number, since it uses less digits than its factorization.

212111200220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57633609 (or 57633606 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212111200220022 its reverse (220022002111212), we get a palindrome (432133202331234).

The spelling of 212111200220022 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred million, two hundred twenty thousand, twenty-two".