2122215432 has 64 divisors (see below), whose sum is σ = 5442413760. Its totient is φ = 689613440.

The previous prime is 2122215397. The next prime is 2122215439. The reversal of 2122215432 is 2345122212.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (2122215439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1653463 + ... + 1654745.

It is an arithmetic number, because the mean of its divisors is an integer number (85037715).

Almost surely, 2^2122215432 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 2122215432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2721206880).

2122215432 is an abundant number, since it is smaller than the sum of its proper divisors (3320198328).

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

2122215432 is an equidigital number, since it uses as much as digits as its factorization.

2122215432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1329 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 2122215432 is about 46067.5095050731. The cubic root of 2122215432 is about 1285.0789884172.

Adding to 2122215432 its reverse (2345122212), we get a palindrome (4467337644).

The spelling of 2122215432 in words is "two billion, one hundred twenty-two million, two hundred fifteen thousand, four hundred thirty-two".