200012213121 has 16 divisors (see below), whose sum is σ = 305365523328. Its totient is φ = 114073315200.

The previous prime is 200012213119. The next prime is 200012213129. The reversal of 200012213121 is 121312210002.

It is not a de Polignac number, because 200012213121 - 2¹ = 200012213119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200012213121.

It is not an unprimeable number, because it can be changed into a prime (200012213129) 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, 9129550 + ... + 9151431.

It is an arithmetic number, because the mean of its divisors is an integer number (19085345208).

Almost surely, 2^200012213121 is an apocalyptic number.

200012213121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

200012213121 is a deficient number, since it is larger than the sum of its proper divisors (105353310207).

200012213121 is a wasteful number, since it uses less digits than its factorization.

200012213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18281512.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 200012213121 its reverse (121312210002), we get a palindrome (321324423123).

The spelling of 200012213121 in words is "two hundred billion, twelve million, two hundred thirteen thousand, one hundred twenty-one".