21214030045352 has 16 divisors (see below), whose sum is σ = 39826848032160. Its totient is φ = 10593537236784.

The previous prime is 21214030045279. The next prime is 21214030045379. The reversal of 21214030045352 is 25354003041212.

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, 1684716548 + ... + 1684729139.

It is an arithmetic number, because the mean of its divisors is an integer number (2489178002010).

Almost surely, 2^{21214030045352} is an apocalyptic number.

It is an amenable number.

21214030045352 is a deficient number, since it is larger than the sum of its proper divisors (18612817986808).

21214030045352 is a wasteful number, since it uses less digits than its factorization.

21214030045352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369446480 (or 3369446476 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 21214030045352 its reverse (25354003041212), we get a palindrome (46568033086564).

The spelling of 21214030045352 in words is "twenty-one trillion, two hundred fourteen billion, thirty million, forty-five thousand, three hundred fifty-two".