222121221210120 has 64 divisors (see below), whose sum is σ = 695335996840320. Its totient is φ = 56657007148544.

The previous prime is 222121221210023. The next prime is 222121221210139. The reversal of 222121221210120 is 21012122121222.

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, 40239348909 + ... + 40239354428.

It is an arithmetic number, because the mean of its divisors is an integer number (10864624950630).

Almost surely, 2^{222121221210120} is an apocalyptic number.

222121221210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121221210120 is an abundant number, since it is smaller than the sum of its proper divisors (473214775630200).

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

222121221210120 is a wasteful number, since it uses less digits than its factorization.

222121221210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80478703374 (or 80478703370 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222121221210120 its reverse (21012122121222), we get a palindrome (243133343331342).

The spelling of 222121221210120 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty".