21214036501306 has 16 divisors (see below), whose sum is σ = 34735479635520. Its totient is φ = 9636743385280.

The previous prime is 21214036501283. The next prime is 21214036501349. The reversal of 21214036501306 is 60310563041212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299987791 + ... + 300058498.

It is an arithmetic number, because the mean of its divisors is an integer number (2170967477220).

Almost surely, 2^{21214036501306} is an apocalyptic number.

21214036501306 is a deficient number, since it is larger than the sum of its proper divisors (13521443134214).

21214036501306 is a wasteful number, since it uses less digits than its factorization.

21214036501306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600047909.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 21214036501306 its reverse (60310563041212), we get a palindrome (81524599542518).

The spelling of 21214036501306 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred one thousand, three hundred six".