212100100222 has 16 divisors (see below), whose sum is σ = 321261183360. Its totient is φ = 105013181592.

The previous prime is 212100100213. The next prime is 212100100231. The reversal of 212100100222 is 222001001212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212100100213) and next prime (212100100231).

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, 4139653 + ... + 4190575.

It is an arithmetic number, because the mean of its divisors is an integer number (20078823960).

Almost surely, 2^212100100222 is an apocalyptic number.

212100100222 is a deficient number, since it is larger than the sum of its proper divisors (109161083138).

212100100222 is a wasteful number, since it uses less digits than its factorization.

212100100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71247.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212100100222 its reverse (222001001212), we get a palindrome (434101101434).

The spelling of 212100100222 in words is "two hundred twelve billion, one hundred million, one hundred thousand, two hundred twenty-two".