121211200133 has 8 divisors (see below), whose sum is σ = 123028810200. Its totient is φ = 119403716608.

The previous prime is 121211200129. The next prime is 121211200223. The reversal of 121211200133 is 331002112121.

It can be written as a sum of positive squares in 4 ways, for example, as 11519084929 + 109692115204 = 107327^2 + 331198^2 .

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 121211200133 - 2² = 121211200129 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 (121211200433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2507516 + ... + 2555397.

It is an arithmetic number, because the mean of its divisors is an integer number (15378601275).

Almost surely, 2^121211200133 is an apocalyptic number.

It is an amenable number.

121211200133 is a deficient number, since it is larger than the sum of its proper divisors (1817610067).

121211200133 is an equidigital number, since it uses as much as digits as its factorization.

121211200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063271.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121211200133 its reverse (331002112121), we get a palindrome (452213312254).

The spelling of 121211200133 in words is "one hundred twenty-one billion, two hundred eleven million, two hundred thousand, one hundred thirty-three".