26221634433321 has 16 divisors (see below), whose sum is σ = 37023059758464. Its totient is φ = 16450887239424.

The previous prime is 26221634433311. The next prime is 26221634433487. The reversal of 26221634433321 is 12333443612262.

It is not a de Polignac number, because 26221634433321 - 2⁹ = 26221634432809 is a prime.

It is a super-2 number, since 2×26221634433321² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26221634433301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29288950 + ... + 30170943.

It is an arithmetic number, because the mean of its divisors is an integer number (2313941234904).

Almost surely, 2^{26221634433321} is an apocalyptic number.

It is an amenable number.

26221634433321 is a deficient number, since it is larger than the sum of its proper divisors (10801425325143).

26221634433321 is a wasteful number, since it uses less digits than its factorization.

26221634433321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59468560.

The product of its digits is 746496, while the sum is 42.

The spelling of 26221634433321 in words is "twenty-six trillion, two hundred twenty-one billion, six hundred thirty-four million, four hundred thirty-three thousand, three hundred twenty-one".