14406221512 has 8 divisors (see below), whose sum is σ = 27011665350. Its totient is φ = 7203110752.

The previous prime is 14406221509. The next prime is 14406221539. The reversal of 14406221512 is 21512260441.

It can be written as a sum of positive squares in only one way, i.e., 10723430916 + 3682790596 = 103554^2 + 60686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×14406221512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900388837 + ... + 900388852.

Almost surely, 2^14406221512 is an apocalyptic number.

It is an amenable number.

14406221512 is a deficient number, since it is larger than the sum of its proper divisors (12605443838).

14406221512 is a wasteful number, since it uses less digits than its factorization.

14406221512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800777695 (or 1800777691 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 14406221512 its reverse (21512260441), we get a palindrome (35918481953).

The spelling of 14406221512 in words is "fourteen billion, four hundred six million, two hundred twenty-one thousand, five hundred twelve".