12210111021101 has 4 divisors (see below), whose sum is σ = 13954412595552. Its totient is φ = 10465809446652.

The previous prime is 12210111021061. The next prime is 12210111021109. The reversal of 12210111021101 is 10112011101221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12210111021101 - 2¹⁴ = 12210111004717 is a prime.

It is a super-2 number, since 2×12210111021101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210111021109) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 872150787215 + ... + 872150787228.

It is an arithmetic number, because the mean of its divisors is an integer number (3488603148888).

Almost surely, 2^{12210111021101} is an apocalyptic number.

It is an amenable number.

12210111021101 is a deficient number, since it is larger than the sum of its proper divisors (1744301574451).

12210111021101 is an equidigital number, since it uses as much as digits as its factorization.

12210111021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744301574450.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12210111021101 its reverse (10112011101221), we get a palindrome (22322122122322).

The spelling of 12210111021101 in words is "twelve trillion, two hundred ten billion, one hundred eleven million, twenty-one thousand, one hundred one".