1225001401 has 12 divisors (see below), whose sum is σ = 1346291472. Its totient is φ = 1113883056.

The previous prime is 1225001359. The next prime is 1225001443. The reversal of 1225001401 is 1041005221.

It is an interprime number because it is at equal distance from previous prime (1225001359) and next prime (1225001443).

It is not a de Polignac number, because 1225001401 - 2⁷ = 1225001273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225005401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42771 + ... + 65416.

It is an arithmetic number, because the mean of its divisors is an integer number (112190956).

Almost surely, 2^1225001401 is an apocalyptic number.

It is an amenable number.

1225001401 is a deficient number, since it is larger than the sum of its proper divisors (121290071).

1225001401 is a wasteful number, since it uses less digits than its factorization.

1225001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108280 (or 108267 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1225001401 is about 35000.0200142800. The cubic root of 1225001401 is about 1069.9878884704.

Adding to 1225001401 its reverse (1041005221), we get a palindrome (2266006622).

The spelling of 1225001401 in words is "one billion, two hundred twenty-five million, one thousand, four hundred one".