200111220210021 has 32 divisors (see below), whose sum is σ = 268486505347200. Its totient is φ = 132574464681984.

The previous prime is 200111220209921. The next prime is 200111220210043. The reversal of 200111220210021 is 120012022111002.

It is not a de Polignac number, because 200111220210021 - 2⁷ = 200111220209893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111220210071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767288810 + ... + 1767402036.

It is an arithmetic number, because the mean of its divisors is an integer number (8390203292100).

Almost surely, 2^{200111220210021} is an apocalyptic number.

It is an amenable number.

200111220210021 is a deficient number, since it is larger than the sum of its proper divisors (68375285137179).

200111220210021 is a wasteful number, since it uses less digits than its factorization.

200111220210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119285.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200111220210021 its reverse (120012022111002), we get a palindrome (320123242321023).

The spelling of 200111220210021 in words is "two hundred trillion, one hundred eleven billion, two hundred twenty million, two hundred ten thousand, twenty-one".