1223332401 has 16 divisors (see below), whose sum is σ = 1641600000. Its totient is φ = 810322128.

The previous prime is 1223332367. The next prime is 1223332417. The reversal of 1223332401 is 1042333221.

1223332401 = 44² + 45² + ... + 1542².

It is not a de Polignac number, because 1223332401 - 2⁶ = 1223332337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223352401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815350 + ... + 816848.

It is an arithmetic number, because the mean of its divisors is an integer number (102600000).

Almost surely, 2^1223332401 is an apocalyptic number.

It is an amenable number.

1223332401 is a deficient number, since it is larger than the sum of its proper divisors (418267599).

1223332401 is a wasteful number, since it uses less digits than its factorization.

1223332401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223332401 is about 34976.1690440791. The cubic root of 1223332401 is about 1069.5017335368.

Adding to 1223332401 its reverse (1042333221), we get a palindrome (2265665622).

The spelling of 1223332401 in words is "one billion, two hundred twenty-three million, three hundred thirty-two thousand, four hundred one".