1222001303 has 4 divisors (see below), whose sum is σ = 1222253760. Its totient is φ = 1221748848.

The previous prime is 1222001267. The next prime is 1222001371. The reversal of 1222001303 is 3031002221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222001303 - 2¹² = 1221997207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222001393) 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, 118823 + ... + 128696.

It is an arithmetic number, because the mean of its divisors is an integer number (305563440).

Almost surely, 2^1222001303 is an apocalyptic number.

1222001303 is a deficient number, since it is larger than the sum of its proper divisors (252457).

1222001303 is an equidigital number, since it uses as much as digits as its factorization.

1222001303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252456.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1222001303 is about 34957.1352230128. The cubic root of 1222001303 is about 1069.1136873906.

Adding to 1222001303 its reverse (3031002221), we get a palindrome (4253003524).

The spelling of 1222001303 in words is "one billion, two hundred twenty-two million, one thousand, three hundred three".