1010111111112 has 32 divisors (see below), whose sum is σ = 2525304278880. Its totient is φ = 336700170240.

The previous prime is 1010111111099. The next prime is 1010111111201. The reversal of 1010111111112 is 2111111110101.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 3186888 + ... + 3489480.

It is an arithmetic number, because the mean of its divisors is an integer number (78915758715).

Almost surely, 2^{1010111111112} is an apocalyptic number.

1010111111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1010111111112 is an abundant number, since it is smaller than the sum of its proper divisors (1515193167768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010111111112 is a wasteful number, since it uses less digits than its factorization.

1010111111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441693 (or 441689 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 1010111111112 its reverse (2111111110101), we get a palindrome (3121222221213).

The spelling of 1010111111112 in words is "one trillion, ten billion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".