1222202506211 has 4 divisors (see below), whose sum is σ = 1222205001000. Its totient is φ = 1222200011424.

The previous prime is 1222202506169. The next prime is 1222202506267. The reversal of 1222202506211 is 1126052022221.

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-1222202506211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222202506271) 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, 242921 + ... + 1582218.

It is an arithmetic number, because the mean of its divisors is an integer number (305551250250).

Almost surely, 2^{1222202506211} is an apocalyptic number.

1222202506211 is a deficient number, since it is larger than the sum of its proper divisors (2494789).

1222202506211 is an equidigital number, since it uses as much as digits as its factorization.

1222202506211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494788.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1222202506211 its reverse (1126052022221), we get a palindrome (2348254528432).

The spelling of 1222202506211 in words is "one trillion, two hundred twenty-two billion, two hundred two million, five hundred six thousand, two hundred eleven".