121442333101 has 4 divisors (see below), whose sum is σ = 128585999772. Its totient is φ = 114298666432.

The previous prime is 121442333083. The next prime is 121442333119. The reversal of 121442333101 is 101333244121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101333244121 = 1949 ⋅51992429.

It is an interprime number because it is at equal distance from previous prime (121442333083) and next prime (121442333119).

It can be written as a sum of positive squares in 2 ways, for example, as 85617686025 + 35824647076 = 292605^2 + 189274^2 .

It is a cyclic number.

It is not a de Polignac number, because 121442333101 - 2¹¹ = 121442331053 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 (121442333171) 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, 3571833310 + ... + 3571833343.

It is an arithmetic number, because the mean of its divisors is an integer number (32146499943).

Almost surely, 2^121442333101 is an apocalyptic number.

It is an amenable number.

121442333101 is a deficient number, since it is larger than the sum of its proper divisors (7143666671).

121442333101 is an equidigital number, since it uses as much as digits as its factorization.

121442333101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143666670.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121442333101 its reverse (101333244121), we get a palindrome (222775577222).

The spelling of 121442333101 in words is "one hundred twenty-one billion, four hundred forty-two million, three hundred thirty-three thousand, one hundred one".