101201211221 has 8 divisors (see below), whose sum is σ = 110424384000. Its totient is φ = 91981882240.

The previous prime is 101201211197. The next prime is 101201211313. The reversal of 101201211221 is 122112102101.

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

It is a cyclic number.

It is not a de Polignac number, because 101201211221 - 2¹⁸ = 101200949077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201211196 and 101201211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201211421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905756 + ... + 1011333.

It is an arithmetic number, because the mean of its divisors is an integer number (13803048000).

Almost surely, 2^101201211221 is an apocalyptic number.

101201211221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101201211221 is a deficient number, since it is larger than the sum of its proper divisors (9223172779).

101201211221 is a wasteful number, since it uses less digits than its factorization.

101201211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921899.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101201211221 its reverse (122112102101), we get a palindrome (223313313322).

The spelling of 101201211221 in words is "one hundred one billion, two hundred one million, two hundred eleven thousand, two hundred twenty-one".