21214527511270 has 16 divisors (see below), whose sum is σ = 38379987846288. Its totient is φ = 8442735820960.

The previous prime is 21214527511253. The next prime is 21214527511273. The reversal of 21214527511270 is 7211572541212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214527511273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5384395876 + ... + 5384399815.

It is an arithmetic number, because the mean of its divisors is an integer number (2398749240393).

Almost surely, 2^{21214527511270} is an apocalyptic number.

21214527511270 is a deficient number, since it is larger than the sum of its proper divisors (17165460335018).

21214527511270 is a wasteful number, since it uses less digits than its factorization.

21214527511270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768795895.

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 21214527511270 in words is "twenty-one trillion, two hundred fourteen billion, five hundred twenty-seven million, five hundred eleven thousand, two hundred seventy".