11121201222 has 16 divisors (see below), whose sum is σ = 22843548912. Its totient is φ = 3606876000.

The previous prime is 11121201193. The next prime is 11121201263. The reversal of 11121201222 is 22210212111.

It is a super-2 number, since 2×11121201222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25047529 + ... + 25047972.

It is an arithmetic number, because the mean of its divisors is an integer number (1427721807).

Almost surely, 2^11121201222 is an apocalyptic number.

11121201222 is an abundant number, since it is smaller than the sum of its proper divisors (11722347690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121201222 is a wasteful number, since it uses less digits than its factorization.

11121201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50095543.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11121201222 its reverse (22210212111), we get a palindrome (33331413333).

The spelling of 11121201222 in words is "eleven billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".