111220002111222 has 192 divisors, whose sum is σ = 265895430840000. Its totient is φ = 33454499807232.

The previous prime is 111220002111107. The next prime is 111220002111287. The reversal of 111220002111222 is 222111200022111.

111220002111222 is a `hidden beast` number, since 1 + 11 + 220 + 0 + 0 + 211 + 1 + 222 = 666.

It is a super-2 number, since 2×111220002111222² (a number of 29 digits) contains 22 as substring.

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 = 111220002111195 and 111220002111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 221082529 + ... + 221585027.

It is an arithmetic number, because the mean of its divisors is an integer number (1384872035625).

Almost surely, 2^{111220002111222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111220002111222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132947715420000).

111220002111222 is an abundant number, since it is smaller than the sum of its proper divisors (154675428728778).

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

111220002111222 is a wasteful number, since it uses less digits than its factorization.

111220002111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502847 (or 502844 counting only the distinct ones).

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

Adding to 111220002111222 its reverse (222111200022111), we get a palindrome (333331202133333).

The spelling of 111220002111222 in words is "one hundred eleven trillion, two hundred twenty billion, two million, one hundred eleven thousand, two hundred twenty-two".