21223286427379 has 4 divisors (see below), whose sum is σ = 21478988673576. Its totient is φ = 20967584181184.

The previous prime is 21223286427263. The next prime is 21223286427407. The reversal of 21223286427379 is 97372468232212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21223286427379 - 2⁷ = 21223286427251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223286422379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127851122974 + ... + 127851123139.

It is an arithmetic number, because the mean of its divisors is an integer number (5369747168394).

Almost surely, 2^{21223286427379} is an apocalyptic number.

21223286427379 is a deficient number, since it is larger than the sum of its proper divisors (255702246197).

21223286427379 is an equidigital number, since it uses as much as digits as its factorization.

21223286427379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255702246196.

The product of its digits is 24385536, while the sum is 58.

The spelling of 21223286427379 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred eighty-six million, four hundred twenty-seven thousand, three hundred seventy-nine".