1121112121202 has 4 divisors (see below), whose sum is σ = 1681668181806. Its totient is φ = 560556060600.

The previous prime is 1121112121201. The next prime is 1121112121219. The reversal of 1121112121202 is 2021212111211.

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., 942046889281 + 179065231921 = 970591^2 + 423161^2 .

It is not an unprimeable number, because it can be changed into a prime (1121112121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280278030299 + ... + 280278030302.

Almost surely, 2^{1121112121202} is an apocalyptic number.

1121112121202 is a deficient number, since it is larger than the sum of its proper divisors (560556060604).

1121112121202 is an equidigital number, since it uses as much as digits as its factorization.

1121112121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560556060603.

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

Adding to 1121112121202 its reverse (2021212111211), we get a palindrome (3142324232413).

Subtracting 1121112121202 from its reverse (2021212111211), we obtain a palindrome (900099990009).

The spelling of 1121112121202 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, two hundred two".