11121020201222 has 4 divisors (see below), whose sum is σ = 16681530301836. Its totient is φ = 5560510100610.

The previous prime is 11121020201107. The next prime is 11121020201231. The reversal of 11121020201222 is 22210202012111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11121020201222.

It is a congruent number.

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, 2780255050304 + ... + 2780255050307.

It is an arithmetic number, because the mean of its divisors is an integer number (4170382575459).

Almost surely, 2^{11121020201222} is an apocalyptic number.

11121020201222 is a deficient number, since it is larger than the sum of its proper divisors (5560510100614).

11121020201222 is an equidigital number, since it uses as much as digits as its factorization.

11121020201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560510100613.

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

Adding to 11121020201222 its reverse (22210202012111), we get a palindrome (33331222213333).

The spelling of 11121020201222 in words is "eleven trillion, one hundred twenty-one billion, twenty million, two hundred one thousand, two hundred twenty-two".