21106442114 has 4 divisors (see below), whose sum is σ = 31659663174. Its totient is φ = 10553221056.

The previous prime is 21106442083. The next prime is 21106442153. The reversal of 21106442114 is 41124460112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20728800625 + 377641489 = 143975^2 + 19433^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5276610527 + ... + 5276610530.

Almost surely, 2^21106442114 is an apocalyptic number.

21106442114 is a deficient number, since it is larger than the sum of its proper divisors (10553221060).

21106442114 is a wasteful number, since it uses less digits than its factorization.

21106442114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553221059.

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 21106442114 in words is "twenty-one billion, one hundred six million, four hundred forty-two thousand, one hundred fourteen".