27221103999 has 32 divisors (see below), whose sum is σ = 41801492480. Its totient is φ = 17489001600.

The previous prime is 27221103983. The next prime is 27221104007. The reversal of 27221103999 is 99930112272.

27221103999 is a `hidden beast` number, since 27 + 221 + 10 + 399 + 9 = 666.

It is not a de Polignac number, because 27221103999 - 2⁴ = 27221103983 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 (27221103929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134244 + ... + 269190.

It is an arithmetic number, because the mean of its divisors is an integer number (1306296640).

Almost surely, 2^27221103999 is an apocalyptic number.

27221103999 is a deficient number, since it is larger than the sum of its proper divisors (14580388481).

27221103999 is a wasteful number, since it uses less digits than its factorization.

27221103999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135228 (or 135222 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The spelling of 27221103999 in words is "twenty-seven billion, two hundred twenty-one million, one hundred three thousand, nine hundred ninety-nine".