212111121212022 has 32 divisors (see below), whose sum is σ = 444405666470400. Its totient is φ = 67401526072608.

The previous prime is 212111121211991. The next prime is 212111121212059. The reversal of 212111121212022 is 220212121111212.

It is a super-2 number, since 2×212111121212022² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212111121212022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7715362408 + ... + 7715389899.

It is an arithmetic number, because the mean of its divisors is an integer number (13887677077200).

Almost surely, 2^{212111121212022} is an apocalyptic number.

212111121212022 is an abundant number, since it is smaller than the sum of its proper divisors (232294545258378).

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

212111121212022 is a wasteful number, since it uses less digits than its factorization.

212111121212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15430752420.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 212111121212022 its reverse (220212121111212), we get a palindrome (432323242323234).

The spelling of 212111121212022 in words is "two hundred twelve trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twelve thousand, twenty-two".