201111110101012 has 24 divisors (see below), whose sum is σ = 358386180405120. Its totient is φ = 98719597392000.

The previous prime is 201111110100991. The next prime is 201111110101087. The reversal of 201111110101012 is 210101011111102.

It is a super-2 number, since 2×201111110101012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201111110100983 and 201111110101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567176773 + ... + 567531244.

It is an arithmetic number, because the mean of its divisors is an integer number (14932757516880).

Almost surely, 2^{201111110101012} is an apocalyptic number.

It is an amenable number.

201111110101012 is a deficient number, since it is larger than the sum of its proper divisors (157275070304108).

201111110101012 is a wasteful number, since it uses less digits than its factorization.

201111110101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134708831 (or 1134708829 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 201111110101012 its reverse (210101011111102), we get a palindrome (411212121212114).

The spelling of 201111110101012 in words is "two hundred one trillion, one hundred eleven billion, one hundred ten million, one hundred one thousand, twelve".