221112452426 has 16 divisors (see below), whose sum is σ = 334789622496. Its totient is φ = 109516042896.

The previous prime is 221112452411. The next prime is 221112452479. The reversal of 221112452426 is 624254211122.

221112452426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221112452426² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221112452392 and 221112452401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5627240 + ... + 5666396.

It is an arithmetic number, because the mean of its divisors is an integer number (20924351406).

Almost surely, 2^221112452426 is an apocalyptic number.

221112452426 is a deficient number, since it is larger than the sum of its proper divisors (113677170070).

221112452426 is a wasteful number, since it uses less digits than its factorization.

221112452426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65653.

The product of its digits is 15360, while the sum is 32.

Adding to 221112452426 its reverse (624254211122), we get a palindrome (845366663548).

The spelling of 221112452426 in words is "two hundred twenty-one billion, one hundred twelve million, four hundred fifty-two thousand, four hundred twenty-six".