211122122299 has 4 divisors (see below), whose sum is σ = 230315042520. Its totient is φ = 191929202080.

The previous prime is 211122122251. The next prime is 211122122371. The reversal of 211122122299 is 992221221112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211122122299 - 2⁹ = 211122121787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122120299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9596460094 + ... + 9596460115.

It is an arithmetic number, because the mean of its divisors is an integer number (57578760630).

Almost surely, 2^211122122299 is an apocalyptic number.

211122122299 is a deficient number, since it is larger than the sum of its proper divisors (19192920221).

211122122299 is a wasteful number, since it uses less digits than its factorization.

211122122299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192920220.

The product of its digits is 5184, while the sum is 34.

The spelling of 211122122299 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred ninety-nine".