101232310221 has 64 divisors (see below), whose sum is σ = 172121241600. Its totient is φ = 57603744000.

The previous prime is 101232310187. The next prime is 101232310253. The reversal of 101232310221 is 122013232101.

101232310221 is a `hidden beast` number, since 10 + 123 + 2 + 310 + 221 = 666.

It is not a de Polignac number, because 101232310221 - 2⁷ = 101232310093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101232310194 and 101232310203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101232310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69766546 + ... + 69767996.

It is an arithmetic number, because the mean of its divisors is an integer number (2689394400).

Almost surely, 2^101232310221 is an apocalyptic number.

It is an amenable number.

101232310221 is a deficient number, since it is larger than the sum of its proper divisors (70888931379).

101232310221 is a wasteful number, since it uses less digits than its factorization.

101232310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2761 counting only the distinct ones).

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

Adding to 101232310221 its reverse (122013232101), we get a palindrome (223245542322).

The spelling of 101232310221 in words is "one hundred one billion, two hundred thirty-two million, three hundred ten thousand, two hundred twenty-one".