1012110220111 has 4 divisors (see below), whose sum is σ = 1016906951224. Its totient is φ = 1007313489000.

The previous prime is 1012110220063. The next prime is 1012110220123. The reversal of 1012110220111 is 1110220112101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012110220111 - 2⁹ = 1012110219599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012110220091 and 1012110220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012116220111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2398365240 + ... + 2398365661.

It is an arithmetic number, because the mean of its divisors is an integer number (254226737806).

Almost surely, 2^{1012110220111} is an apocalyptic number.

1012110220111 is a deficient number, since it is larger than the sum of its proper divisors (4796731113).

1012110220111 is an equidigital number, since it uses as much as digits as its factorization.

1012110220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796731112.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1012110220111 its reverse (1110220112101), we get a palindrome (2122330332212).

The spelling of 1012110220111 in words is "one trillion, twelve billion, one hundred ten million, two hundred twenty thousand, one hundred eleven".