22210221012 has 48 divisors (see below), whose sum is σ = 60111260160. Its totient is φ = 6251062752.

The previous prime is 22210220999. The next prime is 22210221041. The reversal of 22210221012 is 21012201222.

It is a junction number, because it is equal to n+sod(n) for n = 22210220982 and 22210221000.

It is a congruent number.

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, 1967562 + ... + 1978817.

It is an arithmetic number, because the mean of its divisors is an integer number (1252317920).

Almost surely, 2^22210221012 is an apocalyptic number.

It is an amenable number.

22210221012 is an abundant number, since it is smaller than the sum of its proper divisors (37901039148).

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

22210221012 is a wasteful number, since it uses less digits than its factorization.

22210221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946460 (or 3946458 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22210221012 its reverse (21012201222), we get a palindrome (43222422234).

The spelling of 22210221012 in words is "twenty-two billion, two hundred ten million, two hundred twenty-one thousand, twelve".