11220212102121 has 96 divisors (see below), whose sum is σ = 19181448698880. Its totient is φ = 6245953027200.

The previous prime is 11220212102119. The next prime is 11220212102179. The reversal of 11220212102121 is 12120121202211.

11220212102121 is a `hidden beast` number, since 1 + 1 + 220 + 21 + 210 + 212 + 1 = 666.

It is not a de Polignac number, because 11220212102121 - 2¹ = 11220212102119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220212102094 and 11220212102103.

It is not an unprimeable number, because it can be changed into a prime (11220212102221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19411116 + ... + 19980786.

It is an arithmetic number, because the mean of its divisors is an integer number (199806757280).

Almost surely, 2^{11220212102121} is an apocalyptic number.

11220212102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11220212102121 is a deficient number, since it is larger than the sum of its proper divisors (7961236596759).

11220212102121 is a wasteful number, since it uses less digits than its factorization.

11220212102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570027 (or 570024 counting only the distinct ones).

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

Adding to 11220212102121 its reverse (12120121202211), we get a palindrome (23340333304332).

The spelling of 11220212102121 in words is "eleven trillion, two hundred twenty billion, two hundred twelve million, one hundred two thousand, one hundred twenty-one".