11201120121222 has 32 divisors (see below), whose sum is σ = 24892787813760. Its totient is φ = 3733495242120.

The previous prime is 11201120121211. The next prime is 11201120121251. The reversal of 11201120121222 is 22212102110211.

11201120121222 is a `hidden beast` number, since 1 + 1 + 201 + 120 + 121 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11201120121195 and 11201120121204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4910304 + ... + 6820067.

It is an arithmetic number, because the mean of its divisors is an integer number (777899619180).

Almost surely, 2^{11201120121222} is an apocalyptic number.

11201120121222 is an abundant number, since it is smaller than the sum of its proper divisors (13691667692538).

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

11201120121222 is a wasteful number, since it uses less digits than its factorization.

11201120121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11748065 (or 11748059 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11201120121222 its reverse (22212102110211), we get a palindrome (33413222231433).

The spelling of 11201120121222 in words is "eleven trillion, two hundred one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twenty-two".