21442034112 has 28 divisors (see below), whose sum is σ = 56732049096. Its totient is φ = 7147344640.

The previous prime is 21442034101. The next prime is 21442034129. The reversal of 21442034112 is 21143024412.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55838439 + ... + 55838822.

Almost surely, 2^21442034112 is an apocalyptic number.

It is an amenable number.

21442034112 is an abundant number, since it is smaller than the sum of its proper divisors (35290014984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21442034112 is a wasteful number, since it uses less digits than its factorization.

21442034112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111677276 (or 111677266 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21442034112 its reverse (21143024412), we get a palindrome (42585058524).

The spelling of 21442034112 in words is "twenty-one billion, four hundred forty-two million, thirty-four thousand, one hundred twelve".