22220206426 has 16 divisors (see below), whose sum is σ = 36484445088. Its totient is φ = 10065619600.

The previous prime is 22220206391. The next prime is 22220206433. The reversal of 22220206426 is 62460202222.

It is a super-2 number, since 2×22220206426² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22220206394 and 22220206403.

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, 1717120 + ... + 1730011.

It is an arithmetic number, because the mean of its divisors is an integer number (2280277818).

Almost surely, 2^22220206426 is an apocalyptic number.

22220206426 is a deficient number, since it is larger than the sum of its proper divisors (14264238662).

22220206426 is a wasteful number, since it uses less digits than its factorization.

22220206426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447437.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22220206426 its reverse (62460202222), we get a palindrome (84680408648).

The spelling of 22220206426 in words is "twenty-two billion, two hundred twenty million, two hundred six thousand, four hundred twenty-six".