212222120988 has 48 divisors (see below), whose sum is σ = 512479608480. Its totient is φ = 68272130304.

The previous prime is 212222120987. The next prime is 212222120993. The reversal of 212222120988 is 889021222212.

It is a super-2 number, since 2×212222120988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222120983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690870 + ... + 949602.

It is an arithmetic number, because the mean of its divisors is an integer number (10676658510).

Almost surely, 2^212222120988 is an apocalyptic number.

It is an amenable number.

212222120988 is an abundant number, since it is smaller than the sum of its proper divisors (300257487492).

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

212222120988 is a wasteful number, since it uses less digits than its factorization.

212222120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261126 (or 261124 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 212222120988 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred twenty thousand, nine hundred eighty-eight".