1322342021 has 48 divisors (see below), whose sum is σ = 1796433408. Its totient is φ = 945172800.

The previous prime is 1322342003. The next prime is 1322342057. The reversal of 1322342021 is 1202432231.

It is not a de Polignac number, because 1322342021 - 2¹⁰ = 1322340997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322341984 and 1322342002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322342521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3994826 + ... + 3995156.

It is an arithmetic number, because the mean of its divisors is an integer number (37425696).

Almost surely, 2^1322342021 is an apocalyptic number.

1322342021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1322342021 is a deficient number, since it is larger than the sum of its proper divisors (474091387).

1322342021 is a wasteful number, since it uses less digits than its factorization.

1322342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1322342021 is about 36364.0209685343. The cubic root of 1322342021 is about 1097.6096914213.

Adding to 1322342021 its reverse (1202432231), we get a palindrome (2524774252).

It can be divided in two parts, 1322 and 342021, that added together give a palindrome (343343).

The spelling of 1322342021 in words is "one billion, three hundred twenty-two million, three hundred forty-two thousand, twenty-one".