11120022212221 has 16 divisors (see below), whose sum is σ = 12683028783040. Its totient is φ = 9664733013120.

The previous prime is 11120022212197. The next prime is 11120022212231. The reversal of 11120022212221 is 12221222002111.

It is a cyclic number.

It is not a de Polignac number, because 11120022212221 - 2¹¹ = 11120022210173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120022212231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138058920 + ... + 138139441.

It is an arithmetic number, because the mean of its divisors is an integer number (792689298940).

Almost surely, 2^{11120022212221} is an apocalyptic number.

It is an amenable number.

11120022212221 is a deficient number, since it is larger than the sum of its proper divisors (1563006570819).

11120022212221 is a wasteful number, since it uses less digits than its factorization.

11120022212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276198556.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11120022212221 its reverse (12221222002111), we get a palindrome (23341244214332).

The spelling of 11120022212221 in words is "eleven trillion, one hundred twenty billion, twenty-two million, two hundred twelve thousand, two hundred twenty-one".