1211121121202 has 8 divisors (see below), whose sum is σ = 1817591393196. Its totient is φ = 605257323472.

The previous prime is 1211121121201. The next prime is 1211121121247. The reversal of 1211121121202 is 2021211211121.

It can be written as a sum of positive squares in 2 ways, for example, as 1205052867001 + 6068254201 = 1097749^2 + 77899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1211121121201) 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, 151613573 + ... + 151621560.

Almost surely, 2^{1211121121202} is an apocalyptic number.

1211121121202 is a deficient number, since it is larger than the sum of its proper divisors (606470271994).

1211121121202 is a wasteful number, since it uses less digits than its factorization.

1211121121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303237132.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1211121121202 its reverse (2021211211121), we get a palindrome (3232332332323).

The spelling of 1211121121202 in words is "one trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred two".