22021032 has 48 divisors (see below), whose sum is σ = 60520320. Its totient is φ = 6672160.

The previous prime is 22021009. The next prime is 22021049. The reversal of 22021032 is 23012022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22020999 and 22021017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 888 + ... + 6695.

It is an arithmetic number, because the mean of its divisors is an integer number (1260840).

Almost surely, 2^22021032 is an apocalyptic number.

22021032 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 22021032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30260160).

22021032 is an abundant number, since it is smaller than the sum of its proper divisors (38499288).

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

22021032 is a wasteful number, since it uses less digits than its factorization.

22021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7614 (or 7599 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22021032 is about 4692.6572429701. The cubic root of 22021032 is about 280.2931962797.

Adding to 22021032 its reverse (23012022), we get a palindrome (45033054).

The spelling of 22021032 in words is "twenty-two million, twenty-one thousand, thirty-two".