21114342244 has 12 divisors (see below), whose sum is σ = 39123634284. Its totient is φ = 9936161024.

The previous prime is 21114342239. The next prime is 21114342247. The reversal of 21114342244 is 44224341112.

It can be written as a sum of positive squares in 2 ways, for example, as 16831948644 + 4282393600 = 129738^2 + 65440^2 .

It is not an unprimeable number, because it can be changed into a prime (21114342247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155252449 + ... + 155252584.

It is an arithmetic number, because the mean of its divisors is an integer number (3260302857).

Almost surely, 2^21114342244 is an apocalyptic number.

It is an amenable number.

21114342244 is a deficient number, since it is larger than the sum of its proper divisors (18009292040).

21114342244 is a wasteful number, since it uses less digits than its factorization.

21114342244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310505054 (or 310505052 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 21114342244 its reverse (44224341112), we get a palindrome (65338683356).

The spelling of 21114342244 in words is "twenty-one billion, one hundred fourteen million, three hundred forty-two thousand, two hundred forty-four".