1121220121202 has 4 divisors (see below), whose sum is σ = 1681830181806. Its totient is φ = 560610060600.

The previous prime is 1121220121163. The next prime is 1121220121211. The reversal of 1121220121202 is 2021210221211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1109691589561 + 11528531641 = 1053419^2 + 107371^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 280305030299 + ... + 280305030302.

Almost surely, 2^{1121220121202} is an apocalyptic number.

1121220121202 is a deficient number, since it is larger than the sum of its proper divisors (560610060604).

1121220121202 is an equidigital number, since it uses as much as digits as its factorization.

1121220121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560610060603.

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

Adding to 1121220121202 its reverse (2021210221211), we get a palindrome (3142430342413).

The spelling of 1121220121202 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, two hundred two".