101221021096 has 16 divisors (see below), whose sum is σ = 204388600500. Its totient is φ = 46717394304.

The previous prime is 101221021091. The next prime is 101221021129. The reversal of 101221021096 is 690120122101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77868902500 + 23352118596 = 279050^2 + 152814^2 .

It is a super-2 number, since 2×101221021096² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101221021096.

It is not an unprimeable number, because it can be changed into a prime (101221021091) 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 3 ways as a sum of consecutive naturals, for example, 486639421 + ... + 486639628.

Almost surely, 2^101221021096 is an apocalyptic number.

It is an amenable number.

101221021096 is an abundant number, since it is smaller than the sum of its proper divisors (103167579404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221021096 is a wasteful number, since it uses less digits than its factorization.

101221021096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973279068 (or 973279064 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 101221021096 its reverse (690120122101), we get a palindrome (791341143197).

The spelling of 101221021096 in words is "one hundred one billion, two hundred twenty-one million, twenty-one thousand, ninety-six".