200121001020222 has 64 divisors (see below), whose sum is σ = 408759267780864. Its totient is φ = 65303605502720.

The previous prime is 200121001020209. The next prime is 200121001020223. The reversal of 200121001020222 is 222020100121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121001020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41900578 + ... + 46431674.

It is an arithmetic number, because the mean of its divisors is an integer number (6386863559076).

Almost surely, 2^{200121001020222} is an apocalyptic number.

200121001020222 is an abundant number, since it is smaller than the sum of its proper divisors (208638266760642).

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

200121001020222 is a wasteful number, since it uses less digits than its factorization.

200121001020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531993.

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

Adding to 200121001020222 its reverse (222020100121002), we get a palindrome (422141101141224).

The spelling of 200121001020222 in words is "two hundred trillion, one hundred twenty-one billion, one million, twenty thousand, two hundred twenty-two".