220122202211 has 4 divisors (see below), whose sum is σ = 221728933752. Its totient is φ = 218515470672.

The previous prime is 220122202207. The next prime is 220122202253. The reversal of 220122202211 is 112202221022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220122202211 - 2² = 220122202207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220122202211.

It is not an unprimeable number, because it can be changed into a prime (220122202511) 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, 803365565 + ... + 803365838.

It is an arithmetic number, because the mean of its divisors is an integer number (55432233438).

Almost surely, 2^220122202211 is an apocalyptic number.

220122202211 is a deficient number, since it is larger than the sum of its proper divisors (1606731541).

220122202211 is a wasteful number, since it uses less digits than its factorization.

220122202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606731540.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220122202211 its reverse (112202221022), we get a palindrome (332324423233).

The spelling of 220122202211 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred two thousand, two hundred eleven".