212311204022 has 16 divisors (see below), whose sum is σ = 338583252960. Its totient is φ = 99624288192.

The previous prime is 212311203991. The next prime is 212311204033. The reversal of 212311204022 is 220402113212.

It is a junction number, because it is equal to n+sod(n) for n = 212311203985 and 212311204003.

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, 43539647 + ... + 43544522.

It is an arithmetic number, because the mean of its divisors is an integer number (21161453310).

Almost surely, 2^212311204022 is an apocalyptic number.

212311204022 is a deficient number, since it is larger than the sum of its proper divisors (126272048938).

212311204022 is a wasteful number, since it uses less digits than its factorization.

212311204022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87084247.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212311204022 its reverse (220402113212), we get a palindrome (432713317234).

The spelling of 212311204022 in words is "two hundred twelve billion, three hundred eleven million, two hundred four thousand, twenty-two".