21112112014 has 64 divisors (see below), whose sum is σ = 39416785920. Its totient is φ = 8273041920.

The previous prime is 21112111987. The next prime is 21112112039. The reversal of 21112112014 is 41021121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7562959 + ... + 7565749.

It is an arithmetic number, because the mean of its divisors is an integer number (615887280).

Almost surely, 2^21112112014 is an apocalyptic number.

21112112014 is a deficient number, since it is larger than the sum of its proper divisors (18304673906).

21112112014 is a wasteful number, since it uses less digits than its factorization.

21112112014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21112112014 its reverse (41021121112), we get a palindrome (62133233126).

The spelling of 21112112014 in words is "twenty-one billion, one hundred twelve million, one hundred twelve thousand, fourteen".