1122202120211 has 4 divisors (see below), whose sum is σ = 1127898577872. Its totient is φ = 1116505662552.

The previous prime is 1122202120189. The next prime is 1122202120219. The reversal of 1122202120211 is 1120212022211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122202120211 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 1122202120211.

It is not an unprimeable number, because it can be changed into a prime (1122202120219) 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, 2848228535 + ... + 2848228928.

It is an arithmetic number, because the mean of its divisors is an integer number (281974644468).

Almost surely, 2^{1122202120211} is an apocalyptic number.

1122202120211 is a deficient number, since it is larger than the sum of its proper divisors (5696457661).

1122202120211 is an equidigital number, since it uses as much as digits as its factorization.

1122202120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696457660.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1122202120211 its reverse (1120212022211), we get a palindrome (2242414142422).

It can be divided in two parts, 11 and 22202120211, that added together give a palindrome (22202120222).

The spelling of 1122202120211 in words is "one trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty thousand, two hundred eleven".