22121302223044 has 48 divisors (see below), whose sum is σ = 41858076395520. Its totient is φ = 10202905833120.

The previous prime is 22121302223039. The next prime is 22121302223051. The reversal of 22121302223044 is 44032220312122.

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, 35078842 + ... + 35703889.

It is an arithmetic number, because the mean of its divisors is an integer number (872043258240).

Almost surely, 2^{22121302223044} is an apocalyptic number.

It is an amenable number.

22121302223044 is a deficient number, since it is larger than the sum of its proper divisors (19736774172476).

22121302223044 is a wasteful number, since it uses less digits than its factorization.

22121302223044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70782880 (or 70782878 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22121302223044 its reverse (44032220312122), we get a palindrome (66153522535166).

The spelling of 22121302223044 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred two million, two hundred twenty-three thousand, forty-four".