21314641226 has 16 divisors (see below), whose sum is σ = 32579828424. Its totient is φ = 10454755584.

The previous prime is 21314641217. The next prime is 21314641301. The reversal of 21314641226 is 62214641312.

It can be written as a sum of positive squares in 4 ways, for example, as 20264946025 + 1049695201 = 142355^2 + 32399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21314641192 and 21314641201.

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, 1339670 + ... + 1355486.

Almost surely, 2^21314641226 is an apocalyptic number.

21314641226 is a deficient number, since it is larger than the sum of its proper divisors (11265187198).

21314641226 is a wasteful number, since it uses less digits than its factorization.

21314641226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28585.

The product of its digits is 13824, while the sum is 32.

The spelling of 21314641226 in words is "twenty-one billion, three hundred fourteen million, six hundred forty-one thousand, two hundred twenty-six".