12210032101 has 4 divisors (see below), whose sum is σ = 12507837804. Its totient is φ = 11912226400.

The previous prime is 12210032069. The next prime is 12210032113. The reversal of 12210032101 is 10123001221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10123001221 = 197 ⋅51385793.

It can be written as a sum of positive squares in 2 ways, for example, as 1476864900 + 10733167201 = 38430^2 + 103601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12210032101 - 2⁵ = 12210032069 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 (12210032201) 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, 148902790 + ... + 148902871.

It is an arithmetic number, because the mean of its divisors is an integer number (3126959451).

Almost surely, 2^12210032101 is an apocalyptic number.

It is an amenable number.

12210032101 is a deficient number, since it is larger than the sum of its proper divisors (297805703).

12210032101 is an equidigital number, since it uses as much as digits as its factorization.

12210032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297805702.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12210032101 its reverse (10123001221), we get a palindrome (22333033322).

The spelling of 12210032101 in words is "twelve billion, two hundred ten million, thirty-two thousand, one hundred one".