2921111292 has 96 divisors (see below), whose sum is σ = 7990859520. Its totient is φ = 820638720.

The previous prime is 2921111269. The next prime is 2921111293.

2921111292 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921111293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140634 + ... + 160062.

It is an arithmetic number, because the mean of its divisors is an integer number (83238120).

Almost surely, 2^2921111292 is an apocalyptic number.

2921111292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2921111292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3995429760).

2921111292 is an abundant number, since it is smaller than the sum of its proper divisors (5069748228).

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

2921111292 is a wasteful number, since it uses less digits than its factorization.

2921111292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19531 (or 19529 counting only the distinct ones).

The product of its digits is 1296, while the sum is 30.

The square root of 2921111292 is about 54047.3060568240. The cubic root of 2921111292 is about 1429.4951992656.

The spelling of 2921111292 in words is "two billion, nine hundred twenty-one million, one hundred eleven thousand, two hundred ninety-two".