21442060027 has 2 divisors, whose sum is σ = 21442060028. Its totient is φ = 21442060026.

The previous prime is 21442059953. The next prime is 21442060051. The reversal of 21442060027 is 72006024412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21442060027 - 2²³ = 21433671419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21442059977 and 21442060004.

It is not a weakly prime, because it can be changed into another prime (21442060127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10721030013 + 10721030014.

It is an arithmetic number, because the mean of its divisors is an integer number (10721030014).

Almost surely, 2^21442060027 is an apocalyptic number.

21442060027 is a deficient number, since it is larger than the sum of its proper divisors (1).

21442060027 is an equidigital number, since it uses as much as digits as its factorization.

21442060027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 21442060027 its reverse (72006024412), we get a palindrome (93448084439).

The spelling of 21442060027 in words is "twenty-one billion, four hundred forty-two million, sixty thousand, twenty-seven".