11211040121222 has 4 divisors (see below), whose sum is σ = 16816560181836. Its totient is φ = 5605520060610.

The previous prime is 11211040121191. The next prime is 11211040121227. The reversal of 11211040121222 is 22212104011211.

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

It is a junction number, because it is equal to n+sod(n) for n = 11211040121194 and 11211040121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211040121227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802760030304 + ... + 2802760030307.

It is an arithmetic number, because the mean of its divisors is an integer number (4204140045459).

Almost surely, 2^{11211040121222} is an apocalyptic number.

11211040121222 is a deficient number, since it is larger than the sum of its proper divisors (5605520060614).

11211040121222 is an equidigital number, since it uses as much as digits as its factorization.

11211040121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605520060613.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11211040121222 its reverse (22212104011211), we get a palindrome (33423144132433).

The spelling of 11211040121222 in words is "eleven trillion, two hundred eleven billion, forty million, one hundred twenty-one thousand, two hundred twenty-two".