1201323122 has 32 divisors (see below), whose sum is σ = 1950220800. Its totient is φ = 552883968.

The previous prime is 1201323119. The next prime is 1201323163. The reversal of 1201323122 is 2213231021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1201323122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682079 + ... + 683837.

It is an arithmetic number, because the mean of its divisors is an integer number (60944400).

Almost surely, 2^1201323122 is an apocalyptic number.

1201323122 is a deficient number, since it is larger than the sum of its proper divisors (748897678).

1201323122 is a wasteful number, since it uses less digits than its factorization.

1201323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1201323122 is about 34660.1085110823. The cubic root of 1201323122 is about 1063.0489887618.

Adding to 1201323122 its reverse (2213231021), we get a palindrome (3414554143).

The spelling of 1201323122 in words is "one billion, two hundred one million, three hundred twenty-three thousand, one hundred twenty-two".