1201100022111 has 16 divisors (see below), whose sum is σ = 1747537763328. Its totient is φ = 727738080000.

The previous prime is 1201100022091. The next prime is 1201100022113. The reversal of 1201100022111 is 1112200011021.

It is not a de Polignac number, because 1201100022111 - 2¹⁵ = 1201099989343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201100022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4912015 + ... + 5150736.

It is an arithmetic number, because the mean of its divisors is an integer number (109221110208).

Almost surely, 2^{1201100022111} is an apocalyptic number.

1201100022111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201100022111 is a deficient number, since it is larger than the sum of its proper divisors (546437741217).

1201100022111 is a wasteful number, since it uses less digits than its factorization.

1201100022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066382.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201100022111 its reverse (1112200011021), we get a palindrome (2313300033132).

The spelling of 1201100022111 in words is "one trillion, two hundred one billion, one hundred million, twenty-two thousand, one hundred eleven".