212100111110022 has 64 divisors (see below), whose sum is σ = 443568671804160. Its totient is φ = 67544025565824.

The previous prime is 212100111109993. The next prime is 212100111110039. The reversal of 212100111110022 is 220011111001212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212100111109983 and 212100111110010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1680613 + ... + 20664575.

It is an arithmetic number, because the mean of its divisors is an integer number (6930760496940).

Almost surely, 2^{212100111110022} is an apocalyptic number.

212100111110022 is an abundant number, since it is smaller than the sum of its proper divisors (231468560694138).

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

212100111110022 is a wasteful number, since it uses less digits than its factorization.

212100111110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18984917.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212100111110022 its reverse (220011111001212), we get a palindrome (432111222111234).

The spelling of 212100111110022 in words is "two hundred twelve trillion, one hundred billion, one hundred eleven million, one hundred ten thousand, twenty-two".