101213230221 has 24 divisors (see below), whose sum is σ = 152813344320. Its totient is φ = 64431740736.

The previous prime is 101213230213. The next prime is 101213230231. The reversal of 101213230221 is 122032312101.

101213230221 is a `hidden beast` number, since 1 + 0 + 1 + 213 + 230 + 221 = 666.

It is not a de Polignac number, because 101213230221 - 2³ = 101213230213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101213230194 and 101213230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213230231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294976 + ... + 537993.

It is an arithmetic number, because the mean of its divisors is an integer number (6367222680).

Almost surely, 2^101213230221 is an apocalyptic number.

It is an amenable number.

101213230221 is a deficient number, since it is larger than the sum of its proper divisors (51600114099).

101213230221 is a wasteful number, since it uses less digits than its factorization.

101213230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833585 (or 833582 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101213230221 its reverse (122032312101), we get a palindrome (223245542322).

The spelling of 101213230221 in words is "one hundred one billion, two hundred thirteen million, two hundred thirty thousand, two hundred twenty-one".