22060042421 has 2 divisors, whose sum is σ = 22060042422. Its totient is φ = 22060042420.

The previous prime is 22060042391. The next prime is 22060042453. The reversal of 22060042421 is 12424006022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21138252100 + 921790321 = 145390^2 + 30361^2 .

It is a cyclic number.

It is not a de Polignac number, because 22060042421 - 2¹⁰ = 22060041397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22060042471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11030021210 + 11030021211.

It is an arithmetic number, because the mean of its divisors is an integer number (11030021211).

Almost surely, 2^22060042421 is an apocalyptic number.

It is an amenable number.

22060042421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22060042421 is an equidigital number, since it uses as much as digits as its factorization.

22060042421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22060042421 its reverse (12424006022), we get a palindrome (34484048443).

The spelling of 22060042421 in words is "twenty-two billion, sixty million, forty-two thousand, four hundred twenty-one".