121202120133 has 6 divisors (see below), whose sum is σ = 175069729094. Its totient is φ = 80801413416.

The previous prime is 121202120119. The next prime is 121202120153. The reversal of 121202120133 is 331021202121.

It can be written as a sum of positive squares in only one way, i.e., 96585451524 + 24616668609 = 310782^2 + 156897^2 .

It is not a de Polignac number, because 121202120133 - 2⁸ = 121202119877 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 (121202120153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6733451110 + ... + 6733451127.

Almost surely, 2^121202120133 is an apocalyptic number.

It is an amenable number.

121202120133 is a deficient number, since it is larger than the sum of its proper divisors (53867608961).

121202120133 is a wasteful number, since it uses less digits than its factorization.

121202120133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13466902243 (or 13466902240 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121202120133 its reverse (331021202121), we get a palindrome (452223322254).

The spelling of 121202120133 in words is "one hundred twenty-one billion, two hundred two million, one hundred twenty thousand, one hundred thirty-three".