212221262122212 has 48 divisors (see below), whose sum is σ = 571212369100800. Its totient is φ = 60067967380512.

The previous prime is 212221262122187. The next prime is 212221262122213.

212221262122212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×212221262122212² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 212221262122212.

It is not an unprimeable number, because it can be changed into a prime (212221262122213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11805802212 + ... + 11805820187.

It is an arithmetic number, because the mean of its divisors is an integer number (11900257689600).

Almost surely, 2^{212221262122212} is an apocalyptic number.

It is an amenable number.

212221262122212 is an abundant number, since it is smaller than the sum of its proper divisors (358991106978588).

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

212221262122212 is a wasteful number, since it uses less digits than its factorization.

212221262122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23611622520 (or 23611622518 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The spelling of 212221262122212 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred sixty-two million, one hundred twenty-two thousand, two hundred twelve".