22122014200421 has 2 divisors, whose sum is σ = 22122014200422. Its totient is φ = 22122014200420.

The previous prime is 22122014200387. The next prime is 22122014200453. The reversal of 22122014200421 is 12400241022122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21765593260321 + 356420940100 = 4665361^2 + 597010^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122014200421 - 2⁶ = 22122014200357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22122014200621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061007100210 + 11061007100211.

It is an arithmetic number, because the mean of its divisors is an integer number (11061007100211).

Almost surely, 2^{22122014200421} is an apocalyptic number.

It is an amenable number.

22122014200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22122014200421 is an equidigital number, since it uses as much as digits as its factorization.

22122014200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22122014200421 its reverse (12400241022122), we get a palindrome (34522255222543).

The spelling of 22122014200421 in words is "twenty-two trillion, one hundred twenty-two billion, fourteen million, two hundred thousand, four hundred twenty-one".