212100000022222 has 16 divisors (see below), whose sum is σ = 342624604144032. Its totient is φ = 97891871364000.

The previous prime is 212100000022213. The next prime is 212100000022243. The reversal of 212100000022222 is 222220000001212.

212100000022222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

212100000022222 is a modest number, since divided by 22222 gives 21210 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 212100000022196 and 212100000022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12198373 + ... + 23937424.

It is an arithmetic number, because the mean of its divisors is an integer number (21414037759002).

Almost surely, 2^{212100000022222} is an apocalyptic number.

212100000022222 is a deficient number, since it is larger than the sum of its proper divisors (130524604121810).

212100000022222 is a wasteful number, since it uses less digits than its factorization.

212100000022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36361563.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212100000022222 its reverse (222220000001212), we get a palindrome (434320000023434).

The spelling of 212100000022222 in words is "two hundred twelve trillion, one hundred billion, twenty-two thousand, two hundred twenty-two".