12101230221 has 8 divisors (see below), whose sum is σ = 16356000960. Its totient is φ = 7956973152.

The previous prime is 12101230213. The next prime is 12101230279. The reversal of 12101230221 is 12203210121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12101230221 - 2³ = 12101230213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12101230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101230021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27628161 + ... + 27628598.

It is an arithmetic number, because the mean of its divisors is an integer number (2044500120).

Almost surely, 2^12101230221 is an apocalyptic number.

It is an amenable number.

12101230221 is a deficient number, since it is larger than the sum of its proper divisors (4254770739).

12101230221 is an equidigital number, since it uses as much as digits as its factorization.

12101230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55256835.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12101230221 its reverse (12203210121), we get a palindrome (24304440342).

The spelling of 12101230221 in words is "twelve billion, one hundred one million, two hundred thirty thousand, two hundred twenty-one".