11220122220100 has 36 divisors (see below), whose sum is σ = 24453986949700. Its totient is φ = 4468450412160.

The previous prime is 11220122220077. The next prime is 11220122220133. The reversal of 11220122220100 is 102222102211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 187414531396 + 11032707688704 = 432914^2 + 3321552^2 .

It is a super-2 number, since 2×11220122220100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244957935 + ... + 245003734.

Almost surely, 2^{11220122220100} is an apocalyptic number.

11220122220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11220122220100 is an abundant number, since it is smaller than the sum of its proper divisors (13233864729600).

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

11220122220100 is a wasteful number, since it uses less digits than its factorization.

11220122220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489961912 (or 489961905 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11220122220100 its reverse (102222102211), we get a palindrome (11322344322311).

The spelling of 11220122220100 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, one hundred".