1222234668 has 72 divisors (see below), whose sum is σ = 3148218528. Its totient is φ = 399748608.

The previous prime is 1222234649. The next prime is 1222234681. The reversal of 1222234668 is 8664322221.

It is a super-2 number, since 2×1222234668² = 2987715167322140448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417546 + ... + 420462.

Almost surely, 2^1222234668 is an apocalyptic number.

1222234668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1222234668 is an abundant number, since it is smaller than the sum of its proper divisors (1925983860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222234668 is a wasteful number, since it uses less digits than its factorization.

1222234668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143 (or 3138 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 1222234668 is about 34960.4729373045. The cubic root of 1222234668 is about 1069.1817391008.

Adding to 1222234668 its reverse (8664322221), we get a palindrome (9886556889).

The spelling of 1222234668 in words is "one billion, two hundred twenty-two million, two hundred thirty-four thousand, six hundred sixty-eight".