1322021442 has 32 divisors (see below), whose sum is σ = 3026967552. Its totient is φ = 377069904.

The previous prime is 1322021417. The next prime is 1322021447. The reversal of 1322021442 is 2441202231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1322021447) 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, 2158 + ... + 51465.

It is an arithmetic number, because the mean of its divisors is an integer number (94592736).

Almost surely, 2^1322021442 is an apocalyptic number.

1322021442 is an abundant number, since it is smaller than the sum of its proper divisors (1704946110).

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

1322021442 is a wasteful number, since it uses less digits than its factorization.

1322021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54222.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1322021442 is about 36359.6127867171. The cubic root of 1322021442 is about 1097.5209854107.

Adding to 1322021442 its reverse (2441202231), we get a palindrome (3763223673).

The spelling of 1322021442 in words is "one billion, three hundred twenty-two million, twenty-one thousand, four hundred forty-two".