20120222099 has 4 divisors (see below), whose sum is σ = 20166054480. Its totient is φ = 20074389720.

The previous prime is 20120222093. The next prime is 20120222131. The reversal of 20120222099 is 99022202102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99022202102 = 2 ⋅49511101051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120222099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120222093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22915532 + ... + 22916409.

It is an arithmetic number, because the mean of its divisors is an integer number (5041513620).

Almost surely, 2^20120222099 is an apocalyptic number.

20120222099 is a deficient number, since it is larger than the sum of its proper divisors (45832381).

20120222099 is an equidigital number, since it uses as much as digits as its factorization.

20120222099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45832380.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20120222099 in words is "twenty billion, one hundred twenty million, two hundred twenty-two thousand, ninety-nine".