210001212092 has 96 divisors (see below), whose sum is σ = 448245705600. Its totient is φ = 84034068480.

The previous prime is 210001212073. The next prime is 210001212151. The reversal of 210001212092 is 290212100012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86029592 + ... + 86032032.

It is an arithmetic number, because the mean of its divisors is an integer number (4669226100).

Almost surely, 2^210001212092 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 210001212092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224122852800).

210001212092 is an abundant number, since it is smaller than the sum of its proper divisors (238244493508).

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

210001212092 is a wasteful number, since it uses less digits than its factorization.

210001212092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831 (or 3829 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 210001212092 in words is "two hundred ten billion, one million, two hundred twelve thousand, ninety-two".