21120102232101 has 24 divisors (see below), whose sum is σ = 30555654155936. Its totient is φ = 14057528706720.

The previous prime is 21120102232081. The next prime is 21120102232111. The reversal of 21120102232101 is 10123220102112.

21120102232101 is a `hidden beast` number, since 211 + 20 + 1 + 0 + 223 + 210 + 1 = 666.

It is not a de Polignac number, because 21120102232101 - 2³⁰ = 21119028490277 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 (21120102232111) 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 23 ways as a sum of consecutive naturals, for example, 150003906 + ... + 150144636.

Almost surely, 2^{21120102232101} is an apocalyptic number.

It is an amenable number.

21120102232101 is a deficient number, since it is larger than the sum of its proper divisors (9435551923835).

21120102232101 is a wasteful number, since it uses less digits than its factorization.

21120102232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167313 (or 167310 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21120102232101 its reverse (10123220102112), we get a palindrome (31243322334213).

The spelling of 21120102232101 in words is "twenty-one trillion, one hundred twenty billion, one hundred two million, two hundred thirty-two thousand, one hundred one".