222121022012000 has 96 divisors (see below), whose sum is σ = 547126043536800. Its totient is φ = 88624608652800.

The previous prime is 222121022011909. The next prime is 222121022012033. The reversal of 222121022012000 is 210220121222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222121022012000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68349350 + ... + 71525349.

It is an arithmetic number, because the mean of its divisors is an integer number (5699229620175).

Almost surely, 2^{222121022012000} is an apocalyptic number.

222121022012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121022012000 is an abundant number, since it is smaller than the sum of its proper divisors (325005021524800).

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

222121022012000 is a wasteful number, since it uses less digits than its factorization.

222121022012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139875121 (or 139875103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222121022012000 its reverse (210220121222), we get a palindrome (222331242133222).

The spelling of 222121022012000 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, twenty-two million, twelve thousand".