20111100022 has 32 divisors (see below), whose sum is σ = 33679376640. Its totient is φ = 8943989760.

The previous prime is 20111099989. The next prime is 20111100029. The reversal of 20111100022 is 22000111102.

It is a junction number, because it is equal to n+sod(n) for n = 20111099981 and 20111100008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111100029) 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, 134254 + ... + 241342.

It is an arithmetic number, because the mean of its divisors is an integer number (1052480520).

Almost surely, 2^20111100022 is an apocalyptic number.

20111100022 is a deficient number, since it is larger than the sum of its proper divisors (13568276618).

20111100022 is a wasteful number, since it uses less digits than its factorization.

20111100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107368.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20111100022 its reverse (22000111102), we get a palindrome (42111211124).

The spelling of 20111100022 in words is "twenty billion, one hundred eleven million, one hundred thousand, twenty-two".