212100220220122 has 16 divisors (see below), whose sum is σ = 342623674614312. Its totient is φ = 97892340203520.

The previous prime is 212100220220101. The next prime is 212100220220143. The reversal of 212100220220122 is 221022022001212.

212100220220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212100220220101) and next prime (212100220220143).

It can be written as a sum of positive squares in 4 ways, for example, as 147450724699041 + 64649495521081 = 12142929^2 + 8040491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212100220220122.

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, 63575722 + ... + 66828682.

Almost surely, 2^{212100220220122} is an apocalyptic number.

212100220220122 is a deficient number, since it is larger than the sum of its proper divisors (130523454394190).

212100220220122 is a wasteful number, since it uses less digits than its factorization.

212100220220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760753.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212100220220122 its reverse (221022022001212), we get a palindrome (433122242221334).

The spelling of 212100220220122 in words is "two hundred twelve trillion, one hundred billion, two hundred twenty million, two hundred twenty thousand, one hundred twenty-two".