1011000212111 has 4 divisors (see below), whose sum is σ = 1016585848824. Its totient is φ = 1005414575400.

The previous prime is 1011000212069. The next prime is 1011000212113. The reversal of 1011000212111 is 1112120001101.

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 1011000212111 - 2²² = 1010996017807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011000212092 and 1011000212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011000212113) 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, 2792818085 + ... + 2792818446.

It is an arithmetic number, because the mean of its divisors is an integer number (254146462206).

Almost surely, 2^{1011000212111} is an apocalyptic number.

1011000212111 is a deficient number, since it is larger than the sum of its proper divisors (5585636713).

1011000212111 is an equidigital number, since it uses as much as digits as its factorization.

1011000212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585636712.

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

Adding to 1011000212111 its reverse (1112120001101), we get a palindrome (2123120213212).

The spelling of 1011000212111 in words is "one trillion, eleven billion, two hundred twelve thousand, one hundred eleven".