121122210101 has 8 divisors (see below), whose sum is σ = 122513572440. Its totient is φ = 119731524352.

The previous prime is 121122210089. The next prime is 121122210119. The reversal of 121122210101 is 101012221121.

It can be written as a sum of positive squares in 4 ways, for example, as 16802899876 + 104319310225 = 129626^2 + 322985^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121122210101 - 2¹⁰ = 121122209077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122210161) 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 7 ways as a sum of consecutive naturals, for example, 195431 + ... + 529563.

It is an arithmetic number, because the mean of its divisors is an integer number (15314196555).

Almost surely, 2^121122210101 is an apocalyptic number.

It is an amenable number.

121122210101 is a deficient number, since it is larger than the sum of its proper divisors (1391362339).

121122210101 is an equidigital number, since it uses as much as digits as its factorization.

121122210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338295.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121122210101 its reverse (101012221121), we get a palindrome (222134431222).

The spelling of 121122210101 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred one".