20022101100 has 72 divisors (see below), whose sum is σ = 64367355920. Its totient is φ = 5339226240.

The previous prime is 20022101087. The next prime is 20022101111. The reversal of 20022101100 is 110122002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3705097 + ... + 3710496.

Almost surely, 2^20022101100 is an apocalyptic number.

20022101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022101100 is an abundant number, since it is smaller than the sum of its proper divisors (44345254820).

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

20022101100 is a wasteful number, since it uses less digits than its factorization.

20022101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415616 (or 7415603 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20022101100 its reverse (110122002), we get a palindrome (20132223102).

The spelling of 20022101100 in words is "twenty billion, twenty-two million, one hundred one thousand, one hundred".