212122222022 has 16 divisors (see below), whose sum is σ = 341164560960. Its totient is φ = 98558648448.

The previous prime is 212122222021. The next prime is 212122222027. The reversal of 212122222022 is 220222221212.

It is a junction number, because it is equal to n+sod(n) for n = 212122221985 and 212122222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122222021) 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, 39483953 + ... + 39489324.

It is an arithmetic number, because the mean of its divisors is an integer number (21322785060).

Almost surely, 2^212122222022 is an apocalyptic number.

212122222022 is a deficient number, since it is larger than the sum of its proper divisors (129042338938).

212122222022 is a wasteful number, since it uses less digits than its factorization.

212122222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78973375.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212122222022 its reverse (220222221212), we get a palindrome (432344443234).

The spelling of 212122222022 in words is "two hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-two".