121212021022311 has 8 divisors (see below), whose sum is σ = 161619503904000. Its totient is φ = 80806276077752.

The previous prime is 121212021022297. The next prime is 121212021022319. The reversal of 121212021022311 is 113220120212121.

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 121212021022311 - 2⁶ = 121212021022247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121212021022319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434321535 + ... + 434600528.

It is an arithmetic number, because the mean of its divisors is an integer number (20202437988000).

Almost surely, 2^{121212021022311} is an apocalyptic number.

121212021022311 is a deficient number, since it is larger than the sum of its proper divisors (40407482881689).

121212021022311 is an equidigital number, since it uses as much as digits as its factorization.

121212021022311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868968565.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121212021022311 its reverse (113220120212121), we get a palindrome (234432141234432).

The spelling of 121212021022311 in words is "one hundred twenty-one trillion, two hundred twelve billion, twenty-one million, twenty-two thousand, three hundred eleven".