1244122401 has 8 divisors (see below), whose sum is σ = 1661601600. Its totient is φ = 828029072.

The previous prime is 1244122391. The next prime is 1244122427. The reversal of 1244122401 is 1042214421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1244122401 - 2⁷ = 1244122273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244122801) 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, 344370 + ... + 347963.

It is an arithmetic number, because the mean of its divisors is an integer number (207700200).

Almost surely, 2^1244122401 is an apocalyptic number.

It is an amenable number.

1244122401 is a deficient number, since it is larger than the sum of its proper divisors (417479199).

1244122401 is an equidigital number, since it uses as much as digits as its factorization.

1244122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692935.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1244122401 is about 35272.1193154026. The cubic root of 1244122401 is about 1075.5263046808.

Adding to 1244122401 its reverse (1042214421), we get a palindrome (2286336822).

The spelling of 1244122401 in words is "one billion, two hundred forty-four million, one hundred twenty-two thousand, four hundred one".