10001122220091 has 64 divisors (see below), whose sum is σ = 14793724915200. Its totient is φ = 5986434594816.

The previous prime is 10001122220057. The next prime is 10001122220101. The reversal of 10001122220091 is 19002222110001.

It is not a de Polignac number, because 10001122220091 - 2²⁶ = 10001055111227 is a prime.

It is a super-2 number, since 2×10001122220091² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10001122220051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15215155 + ... + 15858851.

It is an arithmetic number, because the mean of its divisors is an integer number (231151951800).

Almost surely, 2^{10001122220091} is an apocalyptic number.

10001122220091 is a deficient number, since it is larger than the sum of its proper divisors (4792602695109).

10001122220091 is a wasteful number, since it uses less digits than its factorization.

10001122220091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643948.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 10001122220091 its reverse (19002222110001), we get a palindrome (29003344330092).

The spelling of 10001122220091 in words is "ten trillion, one billion, one hundred twenty-two million, two hundred twenty thousand, ninety-one".