21340431301022 has 16 divisors (see below), whose sum is σ = 32058247277952. Its totient is φ = 10654355551320.

The previous prime is 21340431300961. The next prime is 21340431301043. The reversal of 21340431301022 is 22010313404312.

It is a super-2 number, since 2×21340431301022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21340431300982 and 21340431301000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4735343 + ... + 8068725.

It is an arithmetic number, because the mean of its divisors is an integer number (2003640454872).

Almost surely, 2^{21340431301022} is an apocalyptic number.

21340431301022 is a deficient number, since it is larger than the sum of its proper divisors (10717815976930).

21340431301022 is a wasteful number, since it uses less digits than its factorization.

21340431301022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338143.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21340431301022 its reverse (22010313404312), we get a palindrome (43350744705334).

The spelling of 21340431301022 in words is "twenty-one trillion, three hundred forty billion, four hundred thirty-one million, three hundred one thousand, twenty-two".