2221021432 has 48 divisors (see below), whose sum is σ = 4912611120. Its totient is φ = 938448000.

The previous prime is 2221021417. The next prime is 2221021447. The reversal of 2221021432 is 2341201222.

It is an interprime number because it is at equal distance from previous prime (2221021417) and next prime (2221021447).

It is a congruent number.

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, 12069 + ... + 67732.

It is an arithmetic number, because the mean of its divisors is an integer number (102346065).

Almost surely, 2^2221021432 is an apocalyptic number.

It is an amenable number.

2221021432 is an abundant number, since it is smaller than the sum of its proper divisors (2691589688).

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

2221021432 is a wasteful number, since it uses less digits than its factorization.

2221021432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79892 (or 79881 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2221021432 is about 47127.7140544712. The cubic root of 2221021432 is about 1304.7207913014.

Adding to 2221021432 its reverse (2341201222), we get a palindrome (4562222654).

The spelling of 2221021432 in words is "two billion, two hundred twenty-one million, twenty-one thousand, four hundred thirty-two".