1012112204111 has 4 divisors (see below), whose sum is σ = 1012888960752. Its totient is φ = 1011335447472.

The previous prime is 1012112204009. The next prime is 1012112204123. The reversal of 1012112204111 is 1114022112101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012112204111 is a prime.

It is a super-2 number, since 2×1012112204111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012112204111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012112204141) 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, 388376366 + ... + 388378971.

It is an arithmetic number, because the mean of its divisors is an integer number (253222240188).

Almost surely, 2^{1012112204111} is an apocalyptic number.

1012112204111 is a deficient number, since it is larger than the sum of its proper divisors (776756641).

1012112204111 is an equidigital number, since it uses as much as digits as its factorization.

1012112204111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776756640.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1012112204111 its reverse (1114022112101), we get a palindrome (2126134316212).

The spelling of 1012112204111 in words is "one trillion, twelve billion, one hundred twelve million, two hundred four thousand, one hundred eleven".