222120200121000 has 64 divisors (see below), whose sum is σ = 693015024386880. Its totient is φ = 59232053364800.

The previous prime is 222120200120989. The next prime is 222120200121019. The reversal of 222120200121000 is 121002021222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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, 37020030354 + ... + 37020036353.

It is an arithmetic number, because the mean of its divisors is an integer number (10828359756045).

Almost surely, 2^{222120200121000} is an apocalyptic number.

222120200121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120200121000 is an abundant number, since it is smaller than the sum of its proper divisors (470894824265880).

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

222120200121000 is a wasteful number, since it uses less digits than its factorization.

222120200121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74040066731 (or 74040066717 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222120200121000 its reverse (121002021222), we get a palindrome (222241202142222).

The spelling of 222120200121000 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred million, one hundred twenty-one thousand".