200121000222222 has 48 divisors (see below), whose sum is σ = 443879608197168. Its totient is φ = 65126231694720.

The previous prime is 200121000222193. The next prime is 200121000222259. The reversal of 200121000222222 is 222222000121002.

200121000222222 is a `hidden beast` number, since 200 + 1 + 21 + 0 + 0 + 0 + 222 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200121000222195 and 200121000222204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56704279 + ... + 60130002.

It is an arithmetic number, because the mean of its divisors is an integer number (9247491837441).

Almost surely, 2^{200121000222222} is an apocalyptic number.

200121000222222 is an abundant number, since it is smaller than the sum of its proper divisors (243758607974946).

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

200121000222222 is a wasteful number, since it uses less digits than its factorization.

200121000222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116836545 (or 116836542 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 200121000222222 its reverse (222222000121002), we get a palindrome (422343000343224).

The spelling of 200121000222222 in words is "two hundred trillion, one hundred twenty-one billion, two hundred twenty-two thousand, two hundred twenty-two".