101323213221 has 16 divisors (see below), whose sum is σ = 143096246784. Its totient is φ = 63552367104.

The previous prime is 101323213213. The next prime is 101323213247. The reversal of 101323213221 is 122312323101.

It is not a de Polignac number, because 101323213221 - 2³ = 101323213213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101323213291) 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, 216085 + ... + 499338.

It is an arithmetic number, because the mean of its divisors is an integer number (8943515424).

Almost surely, 2^101323213221 is an apocalyptic number.

It is an amenable number.

101323213221 is a deficient number, since it is larger than the sum of its proper divisors (41773033563).

101323213221 is a wasteful number, since it uses less digits than its factorization.

101323213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718220.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 101323213221 its reverse (122312323101), we get a palindrome (223635536322).

The spelling of 101323213221 in words is "one hundred one billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred twenty-one".