1121202112211 has 4 divisors (see below), whose sum is σ = 1121221762992. Its totient is φ = 1121182461432.

The previous prime is 1121202112133. The next prime is 1121202112213. The reversal of 1121202112211 is 1122112021211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121202112211 - 2¹⁰ = 1121202111187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121202112211.

It is not an unprimeable number, because it can be changed into a prime (1121202112213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9739556 + ... + 9854001.

It is an arithmetic number, because the mean of its divisors is an integer number (280305440748).

Almost surely, 2^{1121202112211} is an apocalyptic number.

1121202112211 is a deficient number, since it is larger than the sum of its proper divisors (19650781).

1121202112211 is an equidigital number, since it uses as much as digits as its factorization.

1121202112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650780.

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

Adding to 1121202112211 its reverse (1122112021211), we get a palindrome (2243314133422).

The spelling of 1121202112211 in words is "one trillion, one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, two hundred eleven".