200023220121 has 16 divisors (see below), whose sum is σ = 267865678080. Its totient is φ = 132765006080.

The previous prime is 200023220083. The next prime is 200023220191. The reversal of 200023220121 is 121022320002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 200023220121 - 2⁶ = 200023220057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200023220121.

It is not an unprimeable number, because it can be changed into a prime (200023220191) 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, 4092001 + ... + 4140593.

It is an arithmetic number, because the mean of its divisors is an integer number (16741604880).

Almost surely, 2^200023220121 is an apocalyptic number.

It is an amenable number.

200023220121 is a deficient number, since it is larger than the sum of its proper divisors (67842457959).

200023220121 is a wasteful number, since it uses less digits than its factorization.

200023220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54576.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200023220121 its reverse (121022320002), we get a palindrome (321045540123).

The spelling of 200023220121 in words is "two hundred billion, twenty-three million, two hundred twenty thousand, one hundred twenty-one".