122121313333 has 4 divisors (see below), whose sum is σ = 122137064460. Its totient is φ = 122105562208.

The previous prime is 122121313219. The next prime is 122121313343. The reversal of 122121313333 is 333313121221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78152675364 + 43968637969 = 279558^2 + 209687^2 .

It is a cyclic number.

It is not a de Polignac number, because 122121313333 - 2⁹ = 122121312821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122121313298 and 122121313307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121313343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7863928 + ... + 7879441.

It is an arithmetic number, because the mean of its divisors is an integer number (30534266115).

Almost surely, 2^122121313333 is an apocalyptic number.

It is an amenable number.

122121313333 is a deficient number, since it is larger than the sum of its proper divisors (15751127).

122121313333 is an equidigital number, since it uses as much as digits as its factorization.

122121313333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15751126.

The product of its digits is 1944, while the sum is 25.

Adding to 122121313333 its reverse (333313121221), we get a palindrome (455434434554).

The spelling of 122121313333 in words is "one hundred twenty-two billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred thirty-three".