10010101112 has 64 divisors (see below), whose sum is σ = 20786531040. Its totient is φ = 4481344000.

The previous prime is 10010101103. The next prime is 10010101121. The reversal of 10010101112 is 21110101001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10010101103) and next prime (10010101121).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 10010101112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1748078 + ... + 1753794.

Almost surely, 2^10010101112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10010101112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10393265520).

10010101112 is an abundant number, since it is smaller than the sum of its proper divisors (10776429928).

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

10010101112 is a wasteful number, since it uses less digits than its factorization.

10010101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032 (or 6028 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 10010101112 its reverse (21110101001), we get a palindrome (31120202113).

The spelling of 10010101112 in words is "ten billion, ten million, one hundred one thousand, one hundred twelve".