212020021100122 has 128 divisors (see below), whose sum is σ = 349937287603200. Its totient is φ = 95955334373376.

The previous prime is 212020021100047. The next prime is 212020021100137. The reversal of 212020021100122 is 221001120020212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212020021100096 and 212020021100105.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12324587173 + ... + 12324604375.

It is an arithmetic number, because the mean of its divisors is an integer number (2733885059400).

Almost surely, 2^{212020021100122} is an apocalyptic number.

212020021100122 is a deficient number, since it is larger than the sum of its proper divisors (137917266503078).

212020021100122 is a wasteful number, since it uses less digits than its factorization.

212020021100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17960.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020021100122 its reverse (221001120020212), we get a palindrome (433021141120334).

The spelling of 212020021100122 in words is "two hundred twelve trillion, twenty billion, twenty-one million, one hundred thousand, one hundred twenty-two".