101221021101 has 8 divisors (see below), whose sum is σ = 138608965984. Its totient is φ = 65656878480.

The previous prime is 101221021091. The next prime is 101221021129. The reversal of 101221021101 is 101120122101.

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

It is not a de Polignac number, because 101221021101 - 2¹⁸ = 101220758957 is a prime.

It is a super-2 number, since 2×101221021101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221021001) 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, 455950435 + ... + 455950656.

It is an arithmetic number, because the mean of its divisors is an integer number (17326120748).

Almost surely, 2^101221021101 is an apocalyptic number.

It is an amenable number.

101221021101 is a deficient number, since it is larger than the sum of its proper divisors (37387944883).

101221021101 is an equidigital number, since it uses as much as digits as its factorization.

101221021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911901131.

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

Adding to 101221021101 its reverse (101120122101), we get a palindrome (202341143202).

The spelling of 101221021101 in words is "one hundred one billion, two hundred twenty-one million, twenty-one thousand, one hundred one".