200020010022121 has 4 divisors (see below), whose sum is σ = 200115850948992. Its totient is φ = 199924169095252.

The previous prime is 200020010022061. The next prime is 200020010022181. The reversal of 200020010022121 is 121220010020002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (200020010022061) and next prime (200020010022181).

It is a cyclic number.

It is not a de Polignac number, because 200020010022121 - 2²⁷ = 200019875804393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200020010022181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47920460305 + ... + 47920464478.

It is an arithmetic number, because the mean of its divisors is an integer number (50028962737248).

Almost surely, 2^{200020010022121} is an apocalyptic number.

It is an amenable number.

200020010022121 is a deficient number, since it is larger than the sum of its proper divisors (95840926871).

200020010022121 is an equidigital number, since it uses as much as digits as its factorization.

200020010022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95840926870.

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

Adding to 200020010022121 its reverse (121220010020002), we get a palindrome (321240020042123).

The spelling of 200020010022121 in words is "two hundred trillion, twenty billion, ten million, twenty-two thousand, one hundred twenty-one".