121011323122 has 4 divisors (see below), whose sum is σ = 181516984686. Its totient is φ = 60505661560.

The previous prime is 121011323113. The next prime is 121011323123. The reversal of 121011323122 is 221323110121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221323110121 = 47 ⋅4709002343.

It can be written as a sum of positive squares in only one way, i.e., 119205158121 + 1806165001 = 345261^2 + 42499^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121011323122.

It is not an unprimeable number, because it can be changed into a prime (121011323123) 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 as a sum of consecutive naturals, namely, 30252830779 + ... + 30252830782.

Almost surely, 2^121011323122 is an apocalyptic number.

121011323122 is a deficient number, since it is larger than the sum of its proper divisors (60505661564).

121011323122 is an equidigital number, since it uses as much as digits as its factorization.

121011323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60505661563.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121011323122 its reverse (221323110121), we get a palindrome (342334433243).

It can be divided in two parts, 1210113 and 23122, that added together give a triangular number (1233235 = T₁₅₇₀).

The spelling of 121011323122 in words is "one hundred twenty-one billion, eleven million, three hundred twenty-three thousand, one hundred twenty-two".