13021002122 has 8 divisors (see below), whose sum is σ = 19574243076. Its totient is φ = 6496254432.

The previous prime is 13021002103. The next prime is 13021002133. The reversal of 13021002122 is 22120012031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10473680281 + 2547321841 = 102341^2 + 50471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13021002122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13021002097 and 13021002106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7122173 + ... + 7124000.

Almost surely, 2^13021002122 is an apocalyptic number.

13021002122 is a deficient number, since it is larger than the sum of its proper divisors (6553240954).

13021002122 is a wasteful number, since it uses less digits than its factorization.

13021002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14246632.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13021002122 its reverse (22120012031), we get a palindrome (35141014153).

Subtracting 13021002122 from its reverse (22120012031), we obtain a palindrome (9099009909).

The spelling of 13021002122 in words is "thirteen billion, twenty-one million, two thousand, one hundred twenty-two".