21010010100112 has 40 divisors (see below), whose sum is σ = 44410835149632. Its totient is φ = 9549291945600.

The previous prime is 21010010100103. The next prime is 21010010100119. The reversal of 21010010100112 is 21100101001012.

It is not an unprimeable number, because it can be changed into a prime (21010010100119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085228 + ... + 6809419.

Almost surely, 2^{21010010100112} is an apocalyptic number.

21010010100112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21010010100112 is an abundant number, since it is smaller than the sum of its proper divisors (23400825049520).

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

21010010100112 is a wasteful number, since it uses less digits than its factorization.

21010010100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8908087 (or 8908081 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21010010100112 its reverse (21100101001012), we get a palindrome (42110111101124).

The spelling of 21010010100112 in words is "twenty-one trillion, ten billion, ten million, one hundred thousand, one hundred twelve".