21322302001 has 32 divisors (see below), whose sum is σ = 28912133376. Its totient is φ = 15184800000.

The previous prime is 21322301993. The next prime is 21322302011. The reversal of 21322302001 is 10020322312.

It is a cyclic number.

It is not a de Polignac number, because 21322302001 - 2³ = 21322301993 is a prime.

It is a super-4 number, since 4×21322302001⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (21322302011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4350 + ... + 206551.

It is an arithmetic number, because the mean of its divisors is an integer number (903504168).

Almost surely, 2^21322302001 is an apocalyptic number.

It is an amenable number.

21322302001 is a deficient number, since it is larger than the sum of its proper divisors (7589831375).

21322302001 is a wasteful number, since it uses less digits than its factorization.

21322302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211033.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21322302001 its reverse (10020322312), we get a palindrome (31342624313).

It can be divided in two parts, 21322 and 302001, that added together give a palindrome (323323).

The spelling of 21322302001 in words is "twenty-one billion, three hundred twenty-two million, three hundred two thousand, one".