1010012012111 has 4 divisors (see below), whose sum is σ = 1010020708824. Its totient is φ = 1010003315400.

The previous prime is 1010012012099. The next prime is 1010012012123. The reversal of 1010012012111 is 1112102100101.

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

It is an interprime number because it is at equal distance from previous prime (1010012012099) and next prime (1010012012123).

It is a cyclic number.

It is not a de Polignac number, because 1010012012111 - 2³⁰ = 1008938270287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010012012092 and 1010012012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010012012011) 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, 4171760 + ... + 4407221.

It is an arithmetic number, because the mean of its divisors is an integer number (252505177206).

Almost surely, 2^{1010012012111} is an apocalyptic number.

1010012012111 is a deficient number, since it is larger than the sum of its proper divisors (8696713).

1010012012111 is an equidigital number, since it uses as much as digits as its factorization.

1010012012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8696712.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1010012012111 its reverse (1112102100101), we get a palindrome (2122114112212).

It can be divided in two parts, 101001 and 2012111, that added together give a palindrome (2113112).

The spelling of 1010012012111 in words is "one trillion, ten billion, twelve million, twelve thousand, one hundred eleven".