1210020009989 has 8 divisors (see below), whose sum is σ = 1382907540480. Its totient is φ = 1037139361776.

The previous prime is 1210020009959. The next prime is 1210020010007. The reversal of 1210020009989 is 9899000200121.

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

It is not a de Polignac number, because 1210020009989 - 2³² = 1205725042693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210020009959) 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, 1338149 + ... + 2051994.

It is an arithmetic number, because the mean of its divisors is an integer number (172863442560).

Almost surely, 2^{1210020009989} is an apocalyptic number.

It is an amenable number.

1210020009989 is a deficient number, since it is larger than the sum of its proper divisors (172887530491).

1210020009989 is an equidigital number, since it uses as much as digits as its factorization.

1210020009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441139.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 1210020009989 in words is "one trillion, two hundred ten billion, twenty million, nine thousand, nine hundred eighty-nine".