212100001120122 has 32 divisors (see below), whose sum is σ = 435676686476352. Its totient is φ = 68787323345664.

The previous prime is 212100001120097. The next prime is 212100001120211. The reversal of 212100001120122 is 221021100001212.

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, 4746628 + ... + 21135999.

It is an arithmetic number, because the mean of its divisors is an integer number (13614896452386).

Almost surely, 2^{212100001120122} is an apocalyptic number.

212100001120122 is an abundant number, since it is smaller than the sum of its proper divisors (223576685356230).

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

212100001120122 is a wasteful number, since it uses less digits than its factorization.

212100001120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25919582.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212100001120122 its reverse (221021100001212), we get a palindrome (433121101121334).

The spelling of 212100001120122 in words is "two hundred twelve trillion, one hundred billion, one million, one hundred twenty thousand, one hundred twenty-two".