12222120221101 has 4 divisors (see below), whose sum is σ = 13968137395552. Its totient is φ = 10476103046652.

The previous prime is 12222120221081. The next prime is 12222120221141. The reversal of 12222120221101 is 10112202122221.

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 a cyclic number.

It is not a de Polignac number, because 12222120221101 - 2³³ = 12213530286509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222120221141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873008587215 + ... + 873008587228.

It is an arithmetic number, because the mean of its divisors is an integer number (3492034348888).

Almost surely, 2^{12222120221101} is an apocalyptic number.

It is an amenable number.

12222120221101 is a deficient number, since it is larger than the sum of its proper divisors (1746017174451).

12222120221101 is an equidigital number, since it uses as much as digits as its factorization.

12222120221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746017174450.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12222120221101 its reverse (10112202122221), we get a palindrome (22334322343322).

The spelling of 12222120221101 in words is "twelve trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred one".