1222243404 has 12 divisors (see below), whose sum is σ = 2851901304. Its totient is φ = 407414464.

The previous prime is 1222243313. The next prime is 1222243409. The reversal of 1222243404 is 4043422221.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1222243409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50926797 + ... + 50926820.

It is an arithmetic number, because the mean of its divisors is an integer number (237658442).

Almost surely, 2^1222243404 is an apocalyptic number.

It is an amenable number.

1222243404 is an abundant number, since it is smaller than the sum of its proper divisors (1629657900).

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

1222243404 is a wasteful number, since it uses less digits than its factorization.

1222243404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101853624 (or 101853622 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1222243404 is about 34960.5978781828. The cubic root of 1222243404 is about 1069.1842864429.

Adding to 1222243404 its reverse (4043422221), we get a palindrome (5265665625).

The spelling of 1222243404 in words is "one billion, two hundred twenty-two million, two hundred forty-three thousand, four hundred four".