22221121200010 has 32 divisors (see below), whose sum is σ = 41168327558400. Its totient is φ = 8632068644160.

The previous prime is 22221121199941. The next prime is 22221121200011. The reversal of 22221121200010 is 1000212112222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22221121200011) 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, 230509200 + ... + 230605579.

It is an arithmetic number, because the mean of its divisors is an integer number (1286510236200).

Almost surely, 2^{22221121200010} is an apocalyptic number.

22221121200010 is a deficient number, since it is larger than the sum of its proper divisors (18947206358390).

22221121200010 is a wasteful number, since it uses less digits than its factorization.

22221121200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461114926.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22221121200010 its reverse (1000212112222), we get a palindrome (23221333312232).

The spelling of 22221121200010 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, ten".