1121212021202 has 96 divisors (see below), whose sum is σ = 2204567632512. Its totient is φ = 417306719232.

The previous prime is 1121212021201. The next prime is 1121212021207. The reversal of 1121212021202 is 2021202121211.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1121212021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210237728 + ... + 210243060.

It is an arithmetic number, because the mean of its divisors is an integer number (22964246172).

Almost surely, 2^{1121212021202} is an apocalyptic number.

1121212021202 is a deficient number, since it is larger than the sum of its proper divisors (1083355611310).

1121212021202 is a wasteful number, since it uses less digits than its factorization.

1121212021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10612 (or 10599 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1121212021202 its reverse (2021202121211), we get a palindrome (3142414142413).

The spelling of 1121212021202 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, two hundred two".