1222222006 has 16 divisors (see below), whose sum is σ = 1938265200. Its totient is φ = 576415008.

The previous prime is 1222222003. The next prime is 1222222007. The reversal of 1222222006 is 6002222221.

It is a super-3 number, since 3×1222222006³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222222003) 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, 61525 + ... + 78928.

It is an arithmetic number, because the mean of its divisors is an integer number (121141575).

Almost surely, 2^1222222006 is an apocalyptic number.

1222222006 is a deficient number, since it is larger than the sum of its proper divisors (716043194).

1222222006 is a wasteful number, since it uses less digits than its factorization.

1222222006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140703.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1222222006 is about 34960.2918466079. The cubic root of 1222222006 is about 1069.1780469495.

Adding to 1222222006 its reverse (6002222221), we get a palindrome (7224444227).

The spelling of 1222222006 in words is "one billion, two hundred twenty-two million, two hundred twenty-two thousand, six".