200122122202021 has 16 divisors (see below), whose sum is σ = 207163510339968. Its totient is φ = 193192773164800.

The previous prime is 200122122201977. The next prime is 200122122202027. The reversal of 200122122202021 is 120202221221002.

It is a cyclic number.

It is not a de Polignac number, because 200122122202021 - 2⁷ = 200122122201893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200122122202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122122202027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55532755 + ... + 59026528.

It is an arithmetic number, because the mean of its divisors is an integer number (12947719396248).

Almost surely, 2^{200122122202021} is an apocalyptic number.

It is an amenable number.

200122122202021 is a deficient number, since it is larger than the sum of its proper divisors (7041388137947).

200122122202021 is a wasteful number, since it uses less digits than its factorization.

200122122202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114559772.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 200122122202021 its reverse (120202221221002), we get a palindrome (320324343423023).

The spelling of 200122122202021 in words is "two hundred trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, twenty-one".