12722022226 has 8 divisors (see below), whose sum is σ = 19526824944. Its totient is φ = 6213080580.

The previous prime is 12722022167. The next prime is 12722022241. The reversal of 12722022226 is 62222022721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12722022194 and 12722022203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73965160 + ... + 73965331.

It is an arithmetic number, because the mean of its divisors is an integer number (2440853118).

Almost surely, 2^12722022226 is an apocalyptic number.

12722022226 is a deficient number, since it is larger than the sum of its proper divisors (6804802718).

12722022226 is a wasteful number, since it uses less digits than its factorization.

12722022226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147930536.

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 12722022226 its reverse (62222022721), we get a palindrome (74944044947).

The spelling of 12722022226 in words is "twelve billion, seven hundred twenty-two million, twenty-two thousand, two hundred twenty-six".