101212400243223 has 12 divisors (see below), whose sum is σ = 146629504346208. Its totient is φ = 67274711138880.

The previous prime is 101212400243189. The next prime is 101212400243239. The reversal of 101212400243223 is 322342004212101.

101212400243223 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 12 + 400 + 24 + 3 + 223 = 666.

It is not a de Polignac number, because 101212400243223 - 2¹⁰ = 101212400242199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212400243723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16685193183 + ... + 16685199248.

It is an arithmetic number, because the mean of its divisors is an integer number (12219125362184).

Almost surely, 2^{101212400243223} is an apocalyptic number.

101212400243223 is a deficient number, since it is larger than the sum of its proper divisors (45417104102985).

101212400243223 is a wasteful number, since it uses less digits than its factorization.

101212400243223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33370392774 (or 33370392771 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 101212400243223 its reverse (322342004212101), we get a palindrome (423554404455324).

The spelling of 101212400243223 in words is "one hundred one trillion, two hundred twelve billion, four hundred million, two hundred forty-three thousand, two hundred twenty-three".