22221000010 has 64 divisors (see below), whose sum is σ = 44865612288. Its totient is φ = 7853760000.

The previous prime is 22221000007. The next prime is 22221000013. The reversal of 22221000010 is 1000012222.

It is an interprime number because it is at equal distance from previous prime (22221000007) and next prime (22221000013).

It is a super-5 number, since 5×22221000010⁵ (a number of 53 digits) contains 55555 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22221000013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1213120 + ... + 1231300.

It is an arithmetic number, because the mean of its divisors is an integer number (701025192).

Almost surely, 2^22221000010 is an apocalyptic number.

22221000010 is an abundant number, since it is smaller than the sum of its proper divisors (22644612278).

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

22221000010 is a wasteful number, since it uses less digits than its factorization.

22221000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22221000010 its reverse (1000012222), we get a palindrome (23221012232).

The spelling of 22221000010 in words is "twenty-two billion, two hundred twenty-one million, ten", and thus it is an aban number.