21442312119 has 16 divisors (see below), whose sum is σ = 29052370400. Its totient is φ = 14064523776.

The previous prime is 21442312091. The next prime is 21442312147. The reversal of 21442312119 is 91121324412.

It is an interprime number because it is at equal distance from previous prime (21442312091) and next prime (21442312147).

It is not a de Polignac number, because 21442312119 - 2¹² = 21442308023 is a prime.

It is a super-2 number, since 2×21442312119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442312819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30124 + ... + 209265.

It is an arithmetic number, because the mean of its divisors is an integer number (1815773150).

Almost surely, 2^21442312119 is an apocalyptic number.

21442312119 is a deficient number, since it is larger than the sum of its proper divisors (7610058281).

21442312119 is a wasteful number, since it uses less digits than its factorization.

21442312119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239874.

The product of its digits is 3456, while the sum is 30.

The spelling of 21442312119 in words is "twenty-one billion, four hundred forty-two million, three hundred twelve thousand, one hundred nineteen".