1222252122211 has 8 divisors (see below), whose sum is σ = 1254174579504. Its totient is φ = 1190430209280.

The previous prime is 1222252122209. The next prime is 1222252122331. The reversal of 1222252122211 is 1122212522221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222252122211 - 2¹ = 1222252122209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222252126211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25111461 + ... + 25160086.

It is an arithmetic number, because the mean of its divisors is an integer number (156771822438).

Almost surely, 2^{1222252122211} is an apocalyptic number.

1222252122211 is a deficient number, since it is larger than the sum of its proper divisors (31922457293).

1222252122211 is an equidigital number, since it uses as much as digits as its factorization.

1222252122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50272181.

The product of its digits is 1280, while the sum is 25.

Adding to 1222252122211 its reverse (1122212522221), we get a palindrome (2344464644432).

The spelling of 1222252122211 in words is "one trillion, two hundred twenty-two billion, two hundred fifty-two million, one hundred twenty-two thousand, two hundred eleven".