27269122221 has 96 divisors (see below), whose sum is σ = 48010060800. Its totient is φ = 14699543040.

The previous prime is 27269122213. The next prime is 27269122241. The reversal of 27269122221 is 12222196272.

It is a happy number.

It is not a de Polignac number, because 27269122221 - 2³ = 27269122213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27269122241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17490640 + ... + 17492198.

It is an arithmetic number, because the mean of its divisors is an integer number (500104800).

Almost surely, 2^27269122221 is an apocalyptic number.

It is an amenable number.

27269122221 is a deficient number, since it is larger than the sum of its proper divisors (20740938579).

27269122221 is a wasteful number, since it uses less digits than its factorization.

27269122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2156 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The spelling of 27269122221 in words is "twenty-seven billion, two hundred sixty-nine million, one hundred twenty-two thousand, two hundred twenty-one".