2021001029112 has 128 divisors (see below), whose sum is σ = 5574806415360. Its totient is φ = 606657361920.

The previous prime is 2021001029101. The next prime is 2021001029213. The reversal of 2021001029112 is 2119201001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4338928 + ... + 4782080.

It is an arithmetic number, because the mean of its divisors is an integer number (43553175120).

Almost surely, 2^{2021001029112} 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 2021001029112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2787403207680).

2021001029112 is an abundant number, since it is smaller than the sum of its proper divisors (3553805386248).

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

2021001029112 is a wasteful number, since it uses less digits than its factorization.

2021001029112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443533 (or 443529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 2021001029112 in words is "two trillion, twenty-one billion, one million, twenty-nine thousand, one hundred twelve".