67221226 has 16 divisors (see below), whose sum is σ = 105836544. Its totient is φ = 31959664.

The previous prime is 67221211. The next prime is 67221229. The reversal of 67221226 is 62212276.

It is a junction number, because it is equal to n+sod(n) for n = 67221194 and 67221203.

It is not an unprimeable number, because it can be changed into a prime (67221229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735 + ... + 12181.

It is an arithmetic number, because the mean of its divisors is an integer number (6614784).

Almost surely, 2^67221226 is an apocalyptic number.

67221226 is a deficient number, since it is larger than the sum of its proper divisors (38615318).

67221226 is a wasteful number, since it uses less digits than its factorization.

67221226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645.

The product of its digits is 4032, while the sum is 28.

The square root of 67221226 is about 8198.8551639848. The cubic root of 67221226 is about 406.6013438331.

The spelling of 67221226 in words is "sixty-seven million, two hundred twenty-one thousand, two hundred twenty-six".