101222323121 has 4 divisors (see below), whose sum is σ = 101276541552. Its totient is φ = 101168104692.

The previous prime is 101222323079. The next prime is 101222323177. The reversal of 101222323121 is 121323222101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121323222101 = 263 ⋅461305027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101222323121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101222323093 and 101222323102.

It is not an unprimeable number, because it can be changed into a prime (101222323021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27106415 + ... + 27110148.

It is an arithmetic number, because the mean of its divisors is an integer number (25319135388).

Almost surely, 2^101222323121 is an apocalyptic number.

It is an amenable number.

101222323121 is a deficient number, since it is larger than the sum of its proper divisors (54218431).

101222323121 is an equidigital number, since it uses as much as digits as its factorization.

101222323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54218430.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 101222323121 its reverse (121323222101), we get a palindrome (222545545222).

It can be divided in two parts, 101 and 222323121, that added together give a palindrome (222323222).

The spelling of 101222323121 in words is "one hundred one billion, two hundred twenty-two million, three hundred twenty-three thousand, one hundred twenty-one".