21214036533466 has 32 divisors (see below), whose sum is σ = 37684393655040. Its totient is φ = 8763418841856.

The previous prime is 21214036533463. The next prime is 21214036533467. The reversal of 21214036533466 is 66433563041212.

It is not an unprimeable number, because it can be changed into a prime (21214036533463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43816006 + ... + 44297521.

It is an arithmetic number, because the mean of its divisors is an integer number (1177637301720).

Almost surely, 2^{21214036533466} is an apocalyptic number.

21214036533466 is a deficient number, since it is larger than the sum of its proper divisors (16470357121574).

21214036533466 is a wasteful number, since it uses less digits than its factorization.

21214036533466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88114158.

The product of its (nonzero) digits is 1866240, while the sum is 46.

Adding to 21214036533466 its reverse (66433563041212), we get a palindrome (87647599574678).

The spelling of 21214036533466 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-three thousand, four hundred sixty-six".