212022212020122 has 144 divisors (see below), whose sum is σ = 501110679988800. Its totient is φ = 59630455196928.

The previous prime is 212022212020093. The next prime is 212022212020139. The reversal of 212022212020122 is 221020212220212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1846295218 + ... + 1846410050.

It is an arithmetic number, because the mean of its divisors is an integer number (3479935277700).

Almost surely, 2^{212022212020122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212022212020122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250555339994400).

212022212020122 is an abundant number, since it is smaller than the sum of its proper divisors (289088467968678).

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

212022212020122 is a wasteful number, since it uses less digits than its factorization.

212022212020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116385 (or 116311 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212022212020122 its reverse (221020212220212), we get a palindrome (433042424240334).

The spelling of 212022212020122 in words is "two hundred twelve trillion, twenty-two billion, two hundred twelve million, twenty thousand, one hundred twenty-two".