12212211220101 has 32 divisors (see below), whose sum is σ = 18347529335040. Its totient is φ = 8026566912000.

The previous prime is 12212211220081. The next prime is 12212211220177. The reversal of 12212211220101 is 10102211221221.

12212211220101 is a `hidden beast` number, since 1 + 221 + 2 + 211 + 220 + 10 + 1 = 666.

It is not a de Polignac number, because 12212211220101 - 2¹⁰ = 12212211219077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212211220501) 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, 83801701 + ... + 83947301.

It is an arithmetic number, because the mean of its divisors is an integer number (573360291720).

Almost surely, 2^{12212211220101} is an apocalyptic number.

It is an amenable number.

12212211220101 is a deficient number, since it is larger than the sum of its proper divisors (6135318114939).

12212211220101 is a wasteful number, since it uses less digits than its factorization.

12212211220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189434 (or 189428 counting only the distinct ones).

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

Adding to 12212211220101 its reverse (10102211221221), we get a palindrome (22314422441322).

The spelling of 12212211220101 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty thousand, one hundred one".