22000020220 has 24 divisors (see below), whose sum is σ = 46832922864. Its totient is φ = 8679459456.

The previous prime is 22000020199. The next prime is 22000020277. The reversal of 22000020220 is 2202000022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22000020197 and 22000020206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7532794 + ... + 7535713.

It is an arithmetic number, because the mean of its divisors is an integer number (1951371786).

Almost surely, 2^22000020220 is an apocalyptic number.

22000020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000020220 is an abundant number, since it is smaller than the sum of its proper divisors (24832902644).

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

22000020220 is a wasteful number, since it uses less digits than its factorization.

22000020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068589 (or 15068587 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 22000020220 its reverse (2202000022), we get a palindrome (24202020242).

The spelling of 22000020220 in words is "twenty-two billion, twenty thousand, two hundred twenty".