1338231222 has 24 divisors (see below), whose sum is σ = 2905086600. Its totient is φ = 445217760.

The previous prime is 1338231221. The next prime is 1338231227. The reversal of 1338231222 is 2221328331.

It is a happy number.

It is a super-2 number, since 2×1338231222² = 3581725607071226568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338231221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61972 + ... + 80727.

It is an arithmetic number, because the mean of its divisors is an integer number (121045275).

Almost surely, 2^1338231222 is an apocalyptic number.

1338231222 is an abundant number, since it is smaller than the sum of its proper divisors (1566855378).

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

1338231222 is a wasteful number, since it uses less digits than its factorization.

1338231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143228 (or 143225 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1338231222 is about 36581.8427911990. The cubic root of 1338231222 is about 1101.9884754335.

Adding to 1338231222 its reverse (2221328331), we get a palindrome (3559559553).

The spelling of 1338231222 in words is "one billion, three hundred thirty-eight million, two hundred thirty-one thousand, two hundred twenty-two".