22240143430121 has 2 divisors, whose sum is σ = 22240143430122. Its totient is φ = 22240143430120.

The previous prime is 22240143430091. The next prime is 22240143430147. The reversal of 22240143430121 is 12103434104222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21379859354896 + 860284075225 = 4623836^2 + 927515^2 .

It is a cyclic number.

It is not a de Polignac number, because 22240143430121 - 2²² = 22240139235817 is a prime.

It is a super-2 number, since 2×22240143430121² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22240143430151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120071715060 + 11120071715061.

It is an arithmetic number, because the mean of its divisors is an integer number (11120071715061).

Almost surely, 2^{22240143430121} is an apocalyptic number.

It is an amenable number.

22240143430121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22240143430121 is an equidigital number, since it uses as much as digits as its factorization.

22240143430121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22240143430121 its reverse (12103434104222), we get a palindrome (34343577534343).

The spelling of 22240143430121 in words is "twenty-two trillion, two hundred forty billion, one hundred forty-three million, four hundred thirty thousand, one hundred twenty-one".