1201113222111 has 16 divisors (see below), whose sum is σ = 1941193086720. Its totient is φ = 727947407160.

The previous prime is 1201113222097. The next prime is 1201113222119. The reversal of 1201113222111 is 1112223111021.

It is a happy number.

1201113222111 is a `hidden beast` number, since 1 + 20 + 111 + 322 + 211 + 1 = 666.

It is not a de Polignac number, because 1201113222111 - 2¹¹ = 1201113220063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201113222119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2022075835 + ... + 2022076428.

It is an arithmetic number, because the mean of its divisors is an integer number (121324567920).

Almost surely, 2^{1201113222111} is an apocalyptic number.

1201113222111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201113222111 is a deficient number, since it is larger than the sum of its proper divisors (740079864609).

1201113222111 is a wasteful number, since it uses less digits than its factorization.

1201113222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044152283 (or 4044152277 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1201113222111 its reverse (1112223111021), we get a palindrome (2313336333132).

The spelling of 1201113222111 in words is "one trillion, two hundred one billion, one hundred thirteen million, two hundred twenty-two thousand, one hundred eleven".