11222120021222 has 16 divisors (see below), whose sum is σ = 18363581582400. Its totient is φ = 5100932408040.

The previous prime is 11222120021213. The next prime is 11222120021237. The reversal of 11222120021222 is 22212002122211.

It is a junction number, because it is equal to n+sod(n) for n = 11222120021194 and 11222120021203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327429 + ... + 5278367.

It is an arithmetic number, because the mean of its divisors is an integer number (1147723848900).

Almost surely, 2^{11222120021222} is an apocalyptic number.

11222120021222 is a deficient number, since it is larger than the sum of its proper divisors (7141461561178).

11222120021222 is a wasteful number, since it uses less digits than its factorization.

11222120021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123811.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11222120021222 its reverse (22212002122211), we get a palindrome (33434122143433).

It can be divided in two parts, 11 and 222120021222, that multiplied together give a palindrome (2443320233442).

The spelling of 11222120021222 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty million, twenty-one thousand, two hundred twenty-two".