101220324121 has 32 divisors (see below), whose sum is σ = 123423402240. Its totient is φ = 81033578496.

The previous prime is 101220324119. The next prime is 101220324173. The reversal of 101220324121 is 121423022101.

It is not a de Polignac number, because 101220324121 - 2¹ = 101220324119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220327121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8523630 + ... + 8535496.

It is an arithmetic number, because the mean of its divisors is an integer number (3856981320).

Almost surely, 2^101220324121 is an apocalyptic number.

It is an amenable number.

101220324121 is a deficient number, since it is larger than the sum of its proper divisors (22203078119).

101220324121 is a wasteful number, since it uses less digits than its factorization.

101220324121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12433.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 101220324121 its reverse (121423022101), we get a palindrome (222643346222).

It can be divided in two parts, 1012203 and 24121, that added together give a square (1036324 = 1018²).

The spelling of 101220324121 in words is "one hundred one billion, two hundred twenty million, three hundred twenty-four thousand, one hundred twenty-one".