200011322091 has 16 divisors (see below), whose sum is σ = 320820166400. Its totient is φ = 108276805728.

The previous prime is 200011322087. The next prime is 200011322111. The reversal of 200011322091 is 190223110002.

It is not a de Polignac number, because 200011322091 - 2² = 200011322087 is a prime.

It is a super-2 number, since 2×200011322091² (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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200011322041) 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, 250640356 + ... + 250641153.

It is an arithmetic number, because the mean of its divisors is an integer number (20051260400).

Almost surely, 2^200011322091 is an apocalyptic number.

200011322091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

200011322091 is a deficient number, since it is larger than the sum of its proper divisors (120808844309).

200011322091 is a wasteful number, since it uses less digits than its factorization.

200011322091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501281538.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 200011322091 its reverse (190223110002), we get a palindrome (390234432093).

The spelling of 200011322091 in words is "two hundred billion, eleven million, three hundred twenty-two thousand, ninety-one".