212120010122022 has 96 divisors (see below), whose sum is σ = 478931444409600. Its totient is φ = 70363876690080.

The previous prime is 212120010121991. The next prime is 212120010122023. The reversal of 212120010122022 is 220221010021212.

It is a happy number.

212120010122022 is a `hidden beast` number, since 2 + 121 + 200 + 101 + 220 + 22 = 666.

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 = 212120010121986 and 212120010122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120010122023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84072697 + ... + 86558987.

It is an arithmetic number, because the mean of its divisors is an integer number (4988869212600).

Almost surely, 2^{212120010122022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212120010122022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239465722204800).

212120010122022 is an abundant number, since it is smaller than the sum of its proper divisors (266811434287578).

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

212120010122022 is a wasteful number, since it uses less digits than its factorization.

212120010122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487160 (or 2487148 counting only the distinct ones).

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

Adding to 212120010122022 its reverse (220221010021212), we get a palindrome (432341020143234).

The spelling of 212120010122022 in words is "two hundred twelve trillion, one hundred twenty billion, ten million, one hundred twenty-two thousand, twenty-two".