22220011020 has 48 divisors (see below), whose sum is σ = 62435923200. Its totient is φ = 5904394176.

The previous prime is 22220011003. The next prime is 22220011057. The reversal of 22220011020 is 2011002222.

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 = 22220010987 and 22220011005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637320 + ... + 671279.

It is an arithmetic number, because the mean of its divisors is an integer number (1300748400).

Almost surely, 2^22220011020 is an apocalyptic number.

22220011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220011020 is an abundant number, since it is smaller than the sum of its proper divisors (40215912180).

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

22220011020 is a wasteful number, since it uses less digits than its factorization.

22220011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308894 (or 1308892 counting only the distinct ones).

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

Adding to 22220011020 its reverse (2011002222), we get a palindrome (24231013242).

The spelling of 22220011020 in words is "twenty-two billion, two hundred twenty million, eleven thousand, twenty".