1121200022002 has 4 divisors (see below), whose sum is σ = 1681800033006. Its totient is φ = 560600011000.

The previous prime is 1121200021951. The next prime is 1121200022011. The reversal of 1121200022002 is 2002200021211.

It is a happy number.

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., 1118858333121 + 2341688881 = 1057761^2 + 48391^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280300005499 + ... + 280300005502.

Almost surely, 2^{1121200022002} is an apocalyptic number.

1121200022002 is a deficient number, since it is larger than the sum of its proper divisors (560600011004).

1121200022002 is an equidigital number, since it uses as much as digits as its factorization.

1121200022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560600011003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1121200022002 its reverse (2002200021211), we get a palindrome (3123400043213).

The spelling of 1121200022002 in words is "one trillion, one hundred twenty-one billion, two hundred million, twenty-two thousand, two".