22221321010 has 32 divisors (see below), whose sum is σ = 48401400960. Its totient is φ = 7170577152.

The previous prime is 22221321007. The next prime is 22221321013. The reversal of 22221321010 is 1012312222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22221321007) and next prime (22221321013).

It is not an unprimeable number, because it can be changed into a prime (22221321013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9335500 + ... + 9337879.

It is an arithmetic number, because the mean of its divisors is an integer number (1512543780).

Almost surely, 2^22221321010 is an apocalyptic number.

22221321010 is an abundant number, since it is smaller than the sum of its proper divisors (26180079950).

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

22221321010 is a wasteful number, since it uses less digits than its factorization.

22221321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18673410.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22221321010 its reverse (1012312222), we get a palindrome (23233633232).

The spelling of 22221321010 in words is "twenty-two billion, two hundred twenty-one million, three hundred twenty-one thousand, ten".