200021121022 has 16 divisors (see below), whose sum is σ = 304528029840. Its totient is φ = 98511956928.

The previous prime is 200021120987. The next prime is 200021121029. The reversal of 200021121022 is 220121120002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200021120993 and 200021121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021121029) 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, 2935354 + ... + 3002722.

It is an arithmetic number, because the mean of its divisors is an integer number (19033001865).

Almost surely, 2^200021121022 is an apocalyptic number.

200021121022 is a deficient number, since it is larger than the sum of its proper divisors (104506908818).

200021121022 is a wasteful number, since it uses less digits than its factorization.

200021121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89595.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200021121022 its reverse (220121120002), we get a palindrome (420142241024).

The spelling of 200021121022 in words is "two hundred billion, twenty-one million, one hundred twenty-one thousand, twenty-two".