11001211022122 has 4 divisors (see below), whose sum is σ = 16501816533186. Its totient is φ = 5500605511060.

The previous prime is 11001211022101. The next prime is 11001211022167. The reversal of 11001211022122 is 22122011210011.

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

It can be written as a sum of positive squares in only one way, i.e., 9994317181641 + 1006893840481 = 3161379^2 + 1003441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11001211022096 and 11001211022105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750302755529 + ... + 2750302755532.

Almost surely, 2^{11001211022122} is an apocalyptic number.

11001211022122 is a deficient number, since it is larger than the sum of its proper divisors (5500605511064).

11001211022122 is an equidigital number, since it uses as much as digits as its factorization.

11001211022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500605511063.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11001211022122 its reverse (22122011210011), we get a palindrome (33123222232133).

The spelling of 11001211022122 in words is "eleven trillion, one billion, two hundred eleven million, twenty-two thousand, one hundred twenty-two".