12699120 has 80 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 2902272.

The previous prime is 12699107. The next prime is 12699133. The reversal of 12699120 is 2199621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12699107) and next prime (12699133).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12699120² = 322535297548800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2100 + ... + 5459.

It is an arithmetic number, because the mean of its divisors is an integer number (562464).

Almost surely, 2^12699120 is an apocalyptic number.

12699120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12699120 is an abundant number, since it is smaller than the sum of its proper divisors (32298000).

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

12699120 is a wasteful number, since it uses less digits than its factorization.

12699120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582 (or 7576 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 12699120 is about 3563.5824671249. The cubic root of 12699120 is about 233.3052664653.

The spelling of 12699120 in words is "twelve million, six hundred ninety-nine thousand, one hundred twenty".