11201011221222 has 48 divisors (see below), whose sum is σ = 24969044908080. Its totient is φ = 3626307769536.

The previous prime is 11201011221209. The next prime is 11201011221223. The reversal of 11201011221222 is 22212211010211.

11201011221222 is a `hidden beast` number, since 1 + 120 + 101 + 1 + 221 + 222 = 666.

11201011221222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 11201011221195 and 11201011221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201011221223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14561397 + ... + 15311312.

It is an arithmetic number, because the mean of its divisors is an integer number (520188435585).

Almost surely, 2^{11201011221222} is an apocalyptic number.

11201011221222 is an abundant number, since it is smaller than the sum of its proper divisors (13768033686858).

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

11201011221222 is a wasteful number, since it uses less digits than its factorization.

11201011221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29873317 (or 29873314 counting only the distinct ones).

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

Adding to 11201011221222 its reverse (22212211010211), we get a palindrome (33413222231433).

The spelling of 11201011221222 in words is "eleven trillion, two hundred one billion, eleven million, two hundred twenty-one thousand, two hundred twenty-two".