14011221531 has 16 divisors (see below), whose sum is σ = 19372830464. Its totient is φ = 9000116064.

The previous prime is 14011221491. The next prime is 14011221583. The reversal of 14011221531 is 13512211041.

It is not a de Polignac number, because 14011221531 - 2⁶ = 14011221467 is a prime.

It is a super-2 number, since 2×14011221531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14011221498 and 14011221507.

It is not an unprimeable number, because it can be changed into a prime (14011221331) 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, 601321 + ... + 624186.

It is an arithmetic number, because the mean of its divisors is an integer number (1210801904).

Almost surely, 2^14011221531 is an apocalyptic number.

14011221531 is a deficient number, since it is larger than the sum of its proper divisors (5361608933).

14011221531 is a wasteful number, since it uses less digits than its factorization.

14011221531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225650.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 14011221531 its reverse (13512211041), we get a palindrome (27523432572).

The spelling of 14011221531 in words is "fourteen billion, eleven million, two hundred twenty-one thousand, five hundred thirty-one".