10101111112 has 48 divisors (see below), whose sum is σ = 19861415280. Its totient is φ = 4815703200.

The previous prime is 10101111109. The next prime is 10101111143. The reversal of 10101111112 is 21111110101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1397187 + ... + 1404397.

It is an arithmetic number, because the mean of its divisors is an integer number (413779485).

Almost surely, 2^10101111112 is an apocalyptic number.

It is an amenable number.

10101111112 is a deficient number, since it is larger than the sum of its proper divisors (9760304168).

10101111112 is a wasteful number, since it uses less digits than its factorization.

10101111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594 (or 7567 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 10101111112 its reverse (21111110101), we get a palindrome (31212221213).

The spelling of 10101111112 in words is "ten billion, one hundred one million, one hundred eleven thousand, one hundred twelve".