212101001222022 has 48 divisors (see below), whose sum is σ = 501521207018832. Its totient is φ = 64248470703360.

The previous prime is 212101001222017. The next prime is 212101001222081. The reversal of 212101001222022 is 220222100101212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212101001221986 and 212101001222004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204146943 + ... + 205183274.

It is an arithmetic number, because the mean of its divisors is an integer number (10448358479559).

Almost surely, 2^{212101001222022} is an apocalyptic number.

212101001222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212101001222022 is an abundant number, since it is smaller than the sum of its proper divisors (289420205796810).

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

212101001222022 is a wasteful number, since it uses less digits than its factorization.

212101001222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409332853 (or 409332850 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212101001222022 its reverse (220222100101212), we get a palindrome (432323101323234).

The spelling of 212101001222022 in words is "two hundred twelve trillion, one hundred one billion, one million, two hundred twenty-two thousand, twenty-two".