212011200021122 has 32 divisors (see below), whose sum is σ = 354625619443200. Its totient is φ = 94471018322688.

The previous prime is 212011200021097. The next prime is 212011200021157. The reversal of 212011200021122 is 221120002110212.

It is a super-2 number, since 2×212011200021122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 212011200021122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81895922 + ... + 84445037.

It is an arithmetic number, because the mean of its divisors is an integer number (11082050607600).

Almost surely, 2^{212011200021122} is an apocalyptic number.

212011200021122 is a deficient number, since it is larger than the sum of its proper divisors (142614419422078).

212011200021122 is a wasteful number, since it uses less digits than its factorization.

212011200021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166342970.

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

Adding to 212011200021122 its reverse (221120002110212), we get a palindrome (433131202131334).

The spelling of 212011200021122 in words is "two hundred twelve trillion, eleven billion, two hundred million, twenty-one thousand, one hundred twenty-two".