22010221012 has 12 divisors (see below), whose sum is σ = 41480801236. Its totient is φ = 10158563520.

The previous prime is 22010221007. The next prime is 22010221039. The reversal of 22010221012 is 21012201022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4716392976 + 17293828036 = 68676^2 + 131506^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 22010220983 and 22010221001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211636689 + ... + 211636792.

Almost surely, 2^22010221012 is an apocalyptic number.

It is an amenable number.

22010221012 is a deficient number, since it is larger than the sum of its proper divisors (19470580224).

22010221012 is a wasteful number, since it uses less digits than its factorization.

22010221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423273498 (or 423273496 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22010221012 its reverse (21012201022), we get a palindrome (43022422034).

The spelling of 22010221012 in words is "twenty-two billion, ten million, two hundred twenty-one thousand, twelve".