222120320988 has 24 divisors (see below), whose sum is σ = 518338517760. Its totient is φ = 74031854320.

The previous prime is 222120320987. The next prime is 222120321127. The reversal of 222120320988 is 889023021222.

It is a happy number.

It is a super-2 number, since 2×222120320988² (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 (222120320987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918948 + ... + 1135211.

It is an arithmetic number, because the mean of its divisors is an integer number (21597438240).

Almost surely, 2^222120320988 is an apocalyptic number.

It is an amenable number.

222120320988 is an abundant number, since it is smaller than the sum of its proper divisors (296218196772).

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

222120320988 is a wasteful number, since it uses less digits than its factorization.

222120320988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063177 (or 2063175 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 222120320988 in words is "two hundred twenty-two billion, one hundred twenty million, three hundred twenty thousand, nine hundred eighty-eight".