21442412119 has 2 divisors, whose sum is σ = 21442412120. Its totient is φ = 21442412118.

The previous prime is 21442412111. The next prime is 21442412143. The reversal of 21442412119 is 91121424412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21442412119 - 2³ = 21442412111 is a prime.

It is a super-2 number, since 2×21442412119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21442412111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10721206059 + 10721206060.

It is an arithmetic number, because the mean of its divisors is an integer number (10721206060).

Almost surely, 2^21442412119 is an apocalyptic number.

21442412119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21442412119 is an equidigital number, since it uses as much as digits as its factorization.

21442412119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The spelling of 21442412119 in words is "twenty-one billion, four hundred forty-two million, four hundred twelve thousand, one hundred nineteen".