1201120322111 has 4 divisors (see below), whose sum is σ = 1223782969752. Its totient is φ = 1178457674472.

The previous prime is 1201120322107. The next prime is 1201120322113. The reversal of 1201120322111 is 1112230211021.

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 1201120322111 - 2² = 1201120322107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201120322111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201120322113) 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, 11331323741 + ... + 11331323846.

It is an arithmetic number, because the mean of its divisors is an integer number (305945742438).

Almost surely, 2^{1201120322111} is an apocalyptic number.

1201120322111 is a deficient number, since it is larger than the sum of its proper divisors (22662647641).

1201120322111 is an equidigital number, since it uses as much as digits as its factorization.

1201120322111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22662647640.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201120322111 its reverse (1112230211021), we get a palindrome (2313350533132).

The spelling of 1201120322111 in words is "one trillion, two hundred one billion, one hundred twenty million, three hundred twenty-two thousand, one hundred eleven".