21445114404334 has 64 divisors (see below), whose sum is σ = 34292160000000. Its totient is φ = 10023275091456.

The previous prime is 21445114404277. The next prime is 21445114404349. The reversal of 21445114404334 is 43340441154412.

It is a super-2 number, since 2×21445114404334² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6128924917 + ... + 6128928415.

It is an arithmetic number, because the mean of its divisors is an integer number (535815000000).

Almost surely, 2^{21445114404334} is an apocalyptic number.

21445114404334 is a deficient number, since it is larger than the sum of its proper divisors (12847045595666).

21445114404334 is a wasteful number, since it uses less digits than its factorization.

21445114404334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665.

The product of its (nonzero) digits is 368640, while the sum is 40.

Adding to 21445114404334 its reverse (43340441154412), we get a palindrome (64785555558746).

The spelling of 21445114404334 in words is "twenty-one trillion, four hundred forty-five billion, one hundred fourteen million, four hundred four thousand, three hundred thirty-four".