111201001101 has 12 divisors (see below), whose sum is σ = 161061339712. Its totient is φ = 73931998536.

The previous prime is 111201001061. The next prime is 111201001133. The reversal of 111201001101 is 101100102111.

It is not a de Polignac number, because 111201001101 - 2⁷ = 111201000973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201701101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16830031 + ... + 16836636.

Almost surely, 2^111201001101 is an apocalyptic number.

It is an amenable number.

111201001101 is a deficient number, since it is larger than the sum of its proper divisors (49860338611).

111201001101 is a wasteful number, since it uses less digits than its factorization.

111201001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33667040 (or 33667037 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111201001101 its reverse (101100102111), we get a palindrome (212301103212).

The spelling of 111201001101 in words is "one hundred eleven billion, two hundred one million, one thousand, one hundred one".