200231212122 has 24 divisors (see below), whose sum is σ = 441187418880. Its totient is φ = 65612487240.

The previous prime is 200231212121. The next prime is 200231212127. The reversal of 200231212122 is 221212132002.

200231212122 is a `hidden beast` number, since 200 + 231 + 21 + 212 + 2 = 666.

It is a super-3 number, since 3×200231212122³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200231212095 and 200231212104.

It is not an unprimeable number, because it can be changed into a prime (200231212121) 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, 94269754 + ... + 94271877.

It is an arithmetic number, because the mean of its divisors is an integer number (18382809120).

Almost surely, 2^200231212122 is an apocalyptic number.

200231212122 is an abundant number, since it is smaller than the sum of its proper divisors (240956206758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200231212122 is a wasteful number, since it uses less digits than its factorization.

200231212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188541698 (or 188541695 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200231212122 its reverse (221212132002), we get a palindrome (421443344124).

The spelling of 200231212122 in words is "two hundred billion, two hundred thirty-one million, two hundred twelve thousand, one hundred twenty-two".