121211031133 has 4 divisors (see below), whose sum is σ = 124167397788. Its totient is φ = 118254664480.

The previous prime is 121211031131. The next prime is 121211031301. The reversal of 121211031133 is 331130112121.

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 20266939044 + 100944092089 = 142362^2 + 317717^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211031133 - 2¹ = 121211031131 is a prime.

It is a super-2 number, since 2×121211031133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121211031133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211031131) 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, 1478183266 + ... + 1478183347.

It is an arithmetic number, because the mean of its divisors is an integer number (31041849447).

Almost surely, 2^121211031133 is an apocalyptic number.

It is an amenable number.

121211031133 is a deficient number, since it is larger than the sum of its proper divisors (2956366655).

121211031133 is an equidigital number, since it uses as much as digits as its factorization.

121211031133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956366654.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121211031133 its reverse (331130112121), we get a palindrome (452341143254).

The spelling of 121211031133 in words is "one hundred twenty-one billion, two hundred eleven million, thirty-one thousand, one hundred thirty-three".