1201120110111 has 16 divisors (see below), whose sum is σ = 1635393753216. Its totient is φ = 783864815136.

The previous prime is 1201120110103. The next prime is 1201120110139. The reversal of 1201120110111 is 1110110211021.

It is not a de Polignac number, because 1201120110111 - 2³ = 1201120110103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201120110101) 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, 8455765 + ... + 8596638.

It is an arithmetic number, because the mean of its divisors is an integer number (102212109576).

Almost surely, 2^{1201120110111} is an apocalyptic number.

1201120110111 is a deficient number, since it is larger than the sum of its proper divisors (434273643105).

1201120110111 is a wasteful number, since it uses less digits than its factorization.

1201120110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17052902.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1201120110111 its reverse (1110110211021), we get a palindrome (2311230321132).

The spelling of 1201120110111 in words is "one trillion, two hundred one billion, one hundred twenty million, one hundred ten thousand, one hundred eleven".