1242101101209 has 8 divisors (see below), whose sum is σ = 1659005054880. Its totient is φ = 826632274176.

The previous prime is 1242101101201. The next prime is 1242101101217. The reversal of 1242101101209 is 9021011012421.

It is an interprime number because it is at equal distance from previous prime (1242101101201) and next prime (1242101101217).

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

It is not a de Polignac number, because 1242101101209 - 2³ = 1242101101201 is a prime.

It is a super-2 number, since 2×1242101101209² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242101101201) 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, 358779639 + ... + 358783100.

It is an arithmetic number, because the mean of its divisors is an integer number (207375631860).

Almost surely, 2^{1242101101209} is an apocalyptic number.

It is an amenable number.

1242101101209 is a deficient number, since it is larger than the sum of its proper divisors (416903953671).

1242101101209 is an equidigital number, since it uses as much as digits as its factorization.

1242101101209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717563319.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 1242101101209 in words is "one trillion, two hundred forty-two billion, one hundred one million, one hundred one thousand, two hundred nine".