1201130222111 has 4 divisors (see below), whose sum is σ = 1202306648424. Its totient is φ = 1199953795800.

The previous prime is 1201130222077. The next prime is 1201130222143. The reversal of 1201130222111 is 1112220311021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201130222111 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 1201130222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201130224111) 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, 588211625 + ... + 588213666.

It is an arithmetic number, because the mean of its divisors is an integer number (300576662106).

Almost surely, 2^{1201130222111} is an apocalyptic number.

1201130222111 is a deficient number, since it is larger than the sum of its proper divisors (1176426313).

1201130222111 is a wasteful number, since it uses less digits than its factorization.

1201130222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176426312.

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

Adding to 1201130222111 its reverse (1112220311021), we get a palindrome (2313350533132).

It can be divided in two parts, 1201130 and 222111, that added together give a palindrome (1423241).

The spelling of 1201130222111 in words is "one trillion, two hundred one billion, one hundred thirty million, two hundred twenty-two thousand, one hundred eleven".