1211223344 has 40 divisors (see below), whose sum is σ = 2489023728. Its totient is φ = 569016320.

The previous prime is 1211223337. The next prime is 1211223347. The reversal of 1211223344 is 4433221121.

It is not an unprimeable number, because it can be changed into a prime (1211223347) 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, 170879 + ... + 177825.

Almost surely, 2^1211223344 is an apocalyptic number.

It is an amenable number.

1211223344 is an abundant number, since it is smaller than the sum of its proper divisors (1277800384).

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

1211223344 is a wasteful number, since it uses less digits than its factorization.

1211223344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613 (or 7607 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1211223344 is about 34802.6341531787. The cubic root of 1211223344 is about 1065.9612337431.

Adding to 1211223344 its reverse (4433221121), we get a palindrome (5644444465).

The spelling of 1211223344 in words is "one billion, two hundred eleven million, two hundred twenty-three thousand, three hundred forty-four".