101011201221 has 8 divisors (see below), whose sum is σ = 153921830464. Its totient is φ = 57720686400.

The previous prime is 101011201219. The next prime is 101011201237. The reversal of 101011201221 is 122102110101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101011201221 - 2¹ = 101011201219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101011201197 and 101011201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011201241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405028580 + ... + 2405028621.

It is an arithmetic number, because the mean of its divisors is an integer number (19240228808).

Almost surely, 2^101011201221 is an apocalyptic number.

It is an amenable number.

101011201221 is a deficient number, since it is larger than the sum of its proper divisors (52910629243).

101011201221 is an equidigital number, since it uses as much as digits as its factorization.

101011201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4810057211.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101011201221 its reverse (122102110101), we get a palindrome (223113311322).

The spelling of 101011201221 in words is "one hundred one billion, eleven million, two hundred one thousand, two hundred twenty-one".