1229140895091 has 8 divisors (see below), whose sum is σ = 1639020324864. Its totient is φ = 819344364360.

The previous prime is 1229140895041. The next prime is 1229140895111. The reversal of 1229140895091 is 1905980419221.

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

It is not a de Polignac number, because 1229140895091 - 2¹⁰ = 1229140894067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229140895041) 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, 20690155 + ... + 20749476.

It is an arithmetic number, because the mean of its divisors is an integer number (204877540608).

Almost surely, 2^{1229140895091} is an apocalyptic number.

1229140895091 is a deficient number, since it is larger than the sum of its proper divisors (409879429773).

1229140895091 is an equidigital number, since it uses as much as digits as its factorization.

1229140895091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41449521.

The product of its (nonzero) digits is 466560, while the sum is 51.

The spelling of 1229140895091 in words is "one trillion, two hundred twenty-nine billion, one hundred forty million, eight hundred ninety-five thousand, ninety-one".