21214053045104 has 20 divisors (see below), whose sum is σ = 41102304238776. Its totient is φ = 10607006789952.

The previous prime is 21214053045091. The next prime is 21214053045127. The reversal of 21214053045104 is 40154035041212.

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, 11827502 + ... + 13502514.

Almost surely, 2^{21214053045104} is an apocalyptic number.

It is an amenable number.

21214053045104 is a deficient number, since it is larger than the sum of its proper divisors (19888251193672).

21214053045104 is a wasteful number, since it uses less digits than its factorization.

21214053045104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466584 (or 2466578 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 21214053045104 its reverse (40154035041212), we get a palindrome (61368088086316).

The spelling of 21214053045104 in words is "twenty-one trillion, two hundred fourteen billion, fifty-three million, forty-five thousand, one hundred four".