11212100220222 has 96 divisors (see below), whose sum is σ = 26524294318080. Its totient is φ = 3394663272000.

The previous prime is 11212100220179. The next prime is 11212100220313. The reversal of 11212100220222 is 22202200121211.

It is a happy number.

11212100220222 is a `hidden beast` number, since 1 + 1 + 212 + 10 + 0 + 220 + 222 = 666.

It is a super-2 number, since 2×11212100220222² (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 = 11212100220195 and 11212100220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1467740679 + ... + 1467748317.

It is an arithmetic number, because the mean of its divisors is an integer number (276294732480).

Almost surely, 2^{11212100220222} is an apocalyptic number.

11212100220222 is an abundant number, since it is smaller than the sum of its proper divisors (15312194097858).

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

11212100220222 is a wasteful number, since it uses less digits than its factorization.

11212100220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13110 (or 13107 counting only the distinct ones).

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

Adding to 11212100220222 its reverse (22202200121211), we get a palindrome (33414300341433).

The spelling of 11212100220222 in words is "eleven trillion, two hundred twelve billion, one hundred million, two hundred twenty thousand, two hundred twenty-two".