20113222104 has 80 divisors (see below), whose sum is σ = 59649539400. Its totient is φ = 6310027008.

The previous prime is 20113222097. The next prime is 20113222117. The reversal of 20113222104 is 40122231102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 901894 + ... + 923925.

Almost surely, 2^20113222104 is an apocalyptic number.

20113222104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20113222104 is an abundant number, since it is smaller than the sum of its proper divisors (39536317296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20113222104 is a wasteful number, since it uses less digits than its factorization.

20113222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825854 (or 1825841 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20113222104 its reverse (40122231102), we get a palindrome (60235453206).

The spelling of 20113222104 in words is "twenty billion, one hundred thirteen million, two hundred twenty-two thousand, one hundred four".