2121073152 has 160 divisors (see below), whose sum is σ = 6297882624. Its totient is φ = 628838400.

The previous prime is 2121073147. The next prime is 2121073177. The reversal of 2121073152 is 2513701212.

It is a super-2 number, since 2×2121073152² = 8997902632270430208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 792777 + ... + 795447.

Almost surely, 2^2121073152 is an apocalyptic number.

2121073152 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 2121073152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3148941312).

2121073152 is an abundant number, since it is smaller than the sum of its proper divisors (4176809472).

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

2121073152 is a wasteful number, since it uses less digits than its factorization.

2121073152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 2121073152 is about 46055.1099445002. The cubic root of 2121073152 is about 1284.8483829451.

Adding to 2121073152 its reverse (2513701212), we get a palindrome (4634774364).

The spelling of 2121073152 in words is "two billion, one hundred twenty-one million, seventy-three thousand, one hundred fifty-two".