22022110020 has 96 divisors (see below), whose sum is σ = 62742314880. Its totient is φ = 5770275840.

The previous prime is 22022110009. The next prime is 22022110039. The reversal of 22022110020 is 2001122022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22022109978 and 22022110005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1168875 + ... + 1187565.

It is an arithmetic number, because the mean of its divisors is an integer number (653565780).

Almost surely, 2^22022110020 is an apocalyptic number.

22022110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31371157440).

22022110020 is an abundant number, since it is smaller than the sum of its proper divisors (40720204860).

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

22022110020 is a wasteful number, since it uses less digits than its factorization.

22022110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19045 (or 19043 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22022110020 its reverse (2001122022), we get a palindrome (24023232042).

The spelling of 22022110020 in words is "twenty-two billion, twenty-two million, one hundred ten thousand, twenty".