1121200221122 has 4 divisors (see below), whose sum is σ = 1681800331686. Its totient is φ = 560600110560.

The previous prime is 1121200221103. The next prime is 1121200221133. The reversal of 1121200221122 is 2211220021211.

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., 634859961961 + 486340259161 = 796781^2 + 697381^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121200221122.

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, 280300055279 + ... + 280300055282.

Almost surely, 2^{1121200221122} is an apocalyptic number.

1121200221122 is a deficient number, since it is larger than the sum of its proper divisors (560600110564).

1121200221122 is an equidigital number, since it uses as much as digits as its factorization.

1121200221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560600110563.

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

Adding to 1121200221122 its reverse (2211220021211), we get a palindrome (3332420242333).

The spelling of 1121200221122 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred twenty-one thousand, one hundred twenty-two".