23212101 has 16 divisors (see below), whose sum is σ = 34242048. Its totient is φ = 13868400.

The previous prime is 23212099. The next prime is 23212139. The reversal of 23212101 is 10121232.

23212101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 23212101 - 2¹ = 23212099 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2611 + ... + 7296.

It is an arithmetic number, because the mean of its divisors is an integer number (2140128).

Almost surely, 2^23212101 is an apocalyptic number.

It is an amenable number.

23212101 is a deficient number, since it is larger than the sum of its proper divisors (11029947).

23212101 is a wasteful number, since it uses less digits than its factorization.

23212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 23212101 is about 4817.8938344467. The cubic root of 23212101 is about 285.2582085914.

Adding to 23212101 its reverse (10121232), we get a palindrome (33333333).

The spelling of 23212101 in words is "twenty-three million, two hundred twelve thousand, one hundred one".