200121101022 has 16 divisors (see below), whose sum is σ = 411059559312. Its totient is φ = 64904140800.

The previous prime is 200121101003. The next prime is 200121101023. The reversal of 200121101022 is 220101121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121100989 and 200121101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121101023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450722979 + ... + 450723422.

It is an arithmetic number, because the mean of its divisors is an integer number (25691222457).

Almost surely, 2^200121101022 is an apocalyptic number.

200121101022 is an abundant number, since it is smaller than the sum of its proper divisors (210938458290).

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

200121101022 is a wasteful number, since it uses less digits than its factorization.

200121101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901446443.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200121101022 its reverse (220101121002), we get a palindrome (420222222024).

The spelling of 200121101022 in words is "two hundred billion, one hundred twenty-one million, one hundred one thousand, twenty-two".