200121224331 has 24 divisors (see below), whose sum is σ = 323887417344. Its totient is φ = 109383027600.

The previous prime is 200121224309. The next prime is 200121224333. The reversal of 200121224331 is 133422121002.

It is not a de Polignac number, because 200121224331 - 2⁶ = 200121224267 is a prime.

It is a super-2 number, since 2×200121224331² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 200121224298 and 200121224307.

It is not an unprimeable number, because it can be changed into a prime (200121224333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29591595 + ... + 29598356.

It is an arithmetic number, because the mean of its divisors is an integer number (13495309056).

Almost surely, 2^200121224331 is an apocalyptic number.

200121224331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

200121224331 is a deficient number, since it is larger than the sum of its proper divisors (123766193013).

200121224331 is a wasteful number, since it uses less digits than its factorization.

200121224331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59189991 (or 59189984 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 200121224331 its reverse (133422121002), we get a palindrome (333543345333).

The spelling of 200121224331 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty-four thousand, three hundred thirty-one".