200122111022121 has 12 divisors (see below), whose sum is σ = 289065394105072. Its totient is φ = 133414684083576.

The previous prime is 200122111022089. The next prime is 200122111022143. The reversal of 200122111022121 is 121220111221002.

200122111022121 is a `hidden beast` number, since 200 + 1 + 2 + 211 + 10 + 221 + 21 = 666.

It is not a de Polignac number, because 200122111022121 - 2⁵ = 200122111022089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200122111022094 and 200122111022103.

It is not an unprimeable number, because it can be changed into a prime (200122111026121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39166170 + ... + 43979916.

Almost surely, 2^{200122111022121} is an apocalyptic number.

It is an amenable number.

200122111022121 is a deficient number, since it is larger than the sum of its proper divisors (88943283082951).

200122111022121 is a wasteful number, since it uses less digits than its factorization.

200122111022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9432980 (or 9432977 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 200122111022121 its reverse (121220111221002), we get a palindrome (321342222243123).

The spelling of 200122111022121 in words is "two hundred trillion, one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, one hundred twenty-one".