21514014535012 has 12 divisors (see below), whose sum is σ = 37757403735100. Its totient is φ = 10726184896416.

The previous prime is 21514014534953. The next prime is 21514014535033. The reversal of 21514014535012 is 21053541041512.

It can be written as a sum of positive squares in 2 ways, for example, as 13280018718976 + 8233995816036 = 3644176^2 + 2869494^2 .

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, 7705591203 + ... + 7705593994.

Almost surely, 2^{21514014535012} is an apocalyptic number.

It is an amenable number.

21514014535012 is a deficient number, since it is larger than the sum of its proper divisors (16243389200088).

21514014535012 is a wasteful number, since it uses less digits than its factorization.

21514014535012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15411185550 (or 15411185548 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 21514014535012 its reverse (21053541041512), we get a palindrome (42567555576524).

The spelling of 21514014535012 in words is "twenty-one trillion, five hundred fourteen billion, fourteen million, five hundred thirty-five thousand, twelve".