13530021226 has 16 divisors (see below), whose sum is σ = 20366105760. Its totient is φ = 6741353520.

The previous prime is 13530021157. The next prime is 13530021293. The reversal of 13530021226 is 62212003531.

It is a super-2 number, since 2×13530021226² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13530021226.

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, 858445 + ... + 874063.

It is an arithmetic number, because the mean of its divisors is an integer number (1272881610).

Almost surely, 2^13530021226 is an apocalyptic number.

13530021226 is a deficient number, since it is larger than the sum of its proper divisors (6836084534).

13530021226 is a wasteful number, since it uses less digits than its factorization.

13530021226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17109.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13530021226 its reverse (62212003531), we get a palindrome (75742024757).

The spelling of 13530021226 in words is "thirteen billion, five hundred thirty million, twenty-one thousand, two hundred twenty-six".