11201221022012 has 72 divisors (see below), whose sum is σ = 24732682013088. Its totient is φ = 4407940992000.

The previous prime is 11201221022003. The next prime is 11201221022021. The reversal of 11201221022012 is 21022012210211.

It is an interprime number because it is at equal distance from previous prime (11201221022003) and next prime (11201221022021).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40859864 + ... + 41133087.

It is an arithmetic number, because the mean of its divisors is an integer number (343509472404).

Almost surely, 2^{11201221022012} is an apocalyptic number.

It is an amenable number.

11201221022012 is an abundant number, since it is smaller than the sum of its proper divisors (13531460991076).

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

11201221022012 is a wasteful number, since it uses less digits than its factorization.

11201221022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81993027 (or 81993018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11201221022012 its reverse (21022012210211), we get a palindrome (32223233232223).

The spelling of 11201221022012 in words is "eleven trillion, two hundred one billion, two hundred twenty-one million, twenty-two thousand, twelve".