13000022120 has 64 divisors (see below), whose sum is σ = 29481051600. Its totient is φ = 5159096320.

The previous prime is 13000022107. The next prime is 13000022153. The reversal of 13000022120 is 2122000031.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11531752996 + 1468269124 = 107386^2 + 38318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3063200 + ... + 3067440.

Almost surely, 2^13000022120 is an apocalyptic number.

13000022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000022120 is an abundant number, since it is smaller than the sum of its proper divisors (16481029480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13000022120 is a wasteful number, since it uses less digits than its factorization.

13000022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838 (or 4834 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 13000022120 its reverse (2122000031), we get a palindrome (15122022151).

The spelling of 13000022120 in words is "thirteen billion, twenty-two thousand, one hundred twenty".