101220102321 has 16 divisors (see below), whose sum is σ = 150030128640. Its totient is φ = 60279960960.

The previous prime is 101220102311. The next prime is 101220102343. The reversal of 101220102321 is 123201022101.

It is not a de Polignac number, because 101220102321 - 2⁵ = 101220102289 is a prime.

It is a super-2 number, since 2×101220102321² (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 101220102321.

It is not an unprimeable number, because it can be changed into a prime (101220102311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41859876 + ... + 41862293.

It is an arithmetic number, because the mean of its divisors is an integer number (9376883040).

Almost surely, 2^101220102321 is an apocalyptic number.

It is an amenable number.

101220102321 is a deficient number, since it is larger than the sum of its proper divisors (48810026319).

101220102321 is a wasteful number, since it uses less digits than its factorization.

101220102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83722216.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 101220102321 its reverse (123201022101), we get a palindrome (224421124422).

The spelling of 101220102321 in words is "one hundred one billion, two hundred twenty million, one hundred two thousand, three hundred twenty-one".