212213002121022 has 64 divisors (see below), whose sum is σ = 485483669121024. Its totient is φ = 60579137256960.

The previous prime is 212213002120963. The next prime is 212213002121027. The reversal of 212213002121022 is 220121200312212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 212213002121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213002121027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219556918 + ... + 220521350.

It is an arithmetic number, because the mean of its divisors is an integer number (7585682330016).

Almost surely, 2^{212213002121022} is an apocalyptic number.

212213002121022 is an abundant number, since it is smaller than the sum of its proper divisors (273270667000002).

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

212213002121022 is a wasteful number, since it uses less digits than its factorization.

212213002121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969033.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212213002121022 its reverse (220121200312212), we get a palindrome (432334202433234).

The spelling of 212213002121022 in words is "two hundred twelve trillion, two hundred thirteen billion, two million, one hundred twenty-one thousand, twenty-two".