212021120022 has 16 divisors (see below), whose sum is σ = 424632015360. Its totient is φ = 70575410792.

The previous prime is 212021120021. The next prime is 212021120093. The reversal of 212021120022 is 220021120212.

It is a junction number, because it is equal to n+sod(n) for n = 212021119983 and 212021120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021120021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24569298 + ... + 24577925.

It is an arithmetic number, because the mean of its divisors is an integer number (26539500960).

Almost surely, 2^212021120022 is an apocalyptic number.

212021120022 is an abundant number, since it is smaller than the sum of its proper divisors (212610895338).

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

212021120022 is a wasteful number, since it uses less digits than its factorization.

212021120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49147947.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212021120022 its reverse (220021120212), we get a palindrome (432042240234).

The spelling of 212021120022 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, twenty-two".