1201226371 has 24 divisors (see below), whose sum is σ = 1296884160. Its totient is φ = 1111653984.

The previous prime is 1201226357. The next prime is 1201226393. The reversal of 1201226371 is 1736221021.

It is a happy number.

It is not a de Polignac number, because 1201226371 - 2⁵ = 1201226339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201226321) 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 23 ways as a sum of consecutive naturals, for example, 2133336 + ... + 2133898.

It is an arithmetic number, because the mean of its divisors is an integer number (54036840).

Almost surely, 2^1201226371 is an apocalyptic number.

1201226371 is a deficient number, since it is larger than the sum of its proper divisors (95657789).

1201226371 is an equidigital number, since it uses as much as digits as its factorization.

1201226371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1201226371 is about 34658.7127718269. The cubic root of 1201226371 is about 1063.0204497251.

Adding to 1201226371 its reverse (1736221021), we get a palindrome (2937447392).

It can be divided in two parts, 12012 and 26371, that added together give a palindrome (38383).

The spelling of 1201226371 in words is "one billion, two hundred one million, two hundred twenty-six thousand, three hundred seventy-one".