22121341440121 has 32 divisors (see below), whose sum is σ = 28389922460928. Its totient is φ = 16737822167040.

The previous prime is 22121341440103. The next prime is 22121341440139. The reversal of 22121341440121 is 12104414312122.

It is an interprime number because it is at equal distance from previous prime (22121341440103) and next prime (22121341440139).

It is a cyclic number.

It is not a de Polignac number, because 22121341440121 - 2¹¹ = 22121341438073 is a prime.

It is a super-2 number, since 2×22121341440121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22121341440121.

It is not an unprimeable number, because it can be changed into a prime (22121641440121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27545220 + ... + 28336933.

It is an arithmetic number, because the mean of its divisors is an integer number (887185076904).

Almost surely, 2^{22121341440121} is an apocalyptic number.

It is an amenable number.

22121341440121 is a deficient number, since it is larger than the sum of its proper divisors (6268581020807).

22121341440121 is a wasteful number, since it uses less digits than its factorization.

22121341440121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55882321.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 22121341440121 its reverse (12104414312122), we get a palindrome (34225755752243).

The spelling of 22121341440121 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred forty-one million, four hundred forty thousand, one hundred twenty-one".