1210005005129 has 8 divisors (see below), whose sum is σ = 1210587767040. Its totient is φ = 1209422349936.

The previous prime is 1210005005087. The next prime is 1210005005161. The reversal of 1210005005129 is 9215005000121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210005005129 - 2¹² = 1210005001033 is a prime.

It is a super-2 number, since 2×1210005005129² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210005005098 and 1210005005107.

It is not an unprimeable number, because it can be changed into a prime (1210005005329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30751262 + ... + 30790584.

It is an arithmetic number, because the mean of its divisors is an integer number (151323470880).

Almost surely, 2^{1210005005129} is an apocalyptic number.

It is an amenable number.

1210005005129 is a deficient number, since it is larger than the sum of its proper divisors (582761911).

1210005005129 is a wasteful number, since it uses less digits than its factorization.

1210005005129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53359.

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 1210005005129 in words is "one trillion, two hundred ten billion, five million, five thousand, one hundred twenty-nine".