101221303221 has 48 divisors (see below), whose sum is σ = 154490499072. Its totient is φ = 63735936000.

The previous prime is 101221303207. The next prime is 101221303277. The reversal of 101221303221 is 122303122101.

It is not a de Polignac number, because 101221303221 - 2¹⁹ = 101220778933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101221303194 and 101221303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221303291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8001061 + ... + 8013701.

It is an arithmetic number, because the mean of its divisors is an integer number (3218552064).

Almost surely, 2^101221303221 is an apocalyptic number.

It is an amenable number.

101221303221 is a deficient number, since it is larger than the sum of its proper divisors (53269195851).

101221303221 is a wasteful number, since it uses less digits than its factorization.

101221303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154 (or 13151 counting only the distinct ones).

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

Adding to 101221303221 its reverse (122303122101), we get a palindrome (223524425322).

The spelling of 101221303221 in words is "one hundred one billion, two hundred twenty-one million, three hundred three thousand, two hundred twenty-one".