11220100122222 has 64 divisors (see below), whose sum is σ = 24984726624000. Its totient is φ = 3732359775264.

The previous prime is 11220100122169. The next prime is 11220100122227. The reversal of 11220100122222 is 22222100102211.

It is a happy number.

11220100122222 is a `hidden beast` number, since 1 + 1 + 220 + 100 + 122 + 222 = 666.

It is a super-2 number, since 2×11220100122222² (a number of 27 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 = 11220100122195 and 11220100122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220100122227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237745804 + ... + 237792992.

It is an arithmetic number, because the mean of its divisors is an integer number (390386353500).

Almost surely, 2^{11220100122222} is an apocalyptic number.

11220100122222 is an abundant number, since it is smaller than the sum of its proper divisors (13764626501778).

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

11220100122222 is a wasteful number, since it uses less digits than its factorization.

11220100122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56142 (or 56136 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220100122222 its reverse (22222100102211), we get a palindrome (33442200224433).

The spelling of 11220100122222 in words is "eleven trillion, two hundred twenty billion, one hundred million, one hundred twenty-two thousand, two hundred twenty-two".