11221022121222 has 8 divisors (see below), whose sum is σ = 22442044242456. Its totient is φ = 3740340707072.

The previous prime is 11221022121187. The next prime is 11221022121251. The reversal of 11221022121222 is 22212122012211.

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

11221022121222 is an admirable number.

It is a super-2 number, since 2×11221022121222² (a number of 27 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 3 ways as a sum of consecutive naturals, for example, 935085176763 + ... + 935085176774.

It is an arithmetic number, because the mean of its divisors is an integer number (2805255530307).

Almost surely, 2^{11221022121222} is an apocalyptic number.

11221022121222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11221022121222 is a wasteful number, since it uses less digits than its factorization.

11221022121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870170353542.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11221022121222 its reverse (22212122012211), we get a palindrome (33433144133433).

The spelling of 11221022121222 in words is "eleven trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty-two".