1121200000211 has 4 divisors (see below), whose sum is σ = 1121362335192. Its totient is φ = 1121037665232.

The previous prime is 1121200000177. The next prime is 1121200000223. The reversal of 1121200000211 is 1120000021211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121200000211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121200000192 and 1121200000201.

It is not an unprimeable number, because it can be changed into a prime (1121200008211) 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, 81157130 + ... + 81170943.

It is an arithmetic number, because the mean of its divisors is an integer number (280340583798).

Almost surely, 2^{1121200000211} is an apocalyptic number.

1121200000211 is a deficient number, since it is larger than the sum of its proper divisors (162334981).

1121200000211 is an equidigital number, since it uses as much as digits as its factorization.

1121200000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162334980.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1121200000211 its reverse (1120000021211), we get a palindrome (2241200021422).

The spelling of 1121200000211 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred eleven", and thus it is an aban number.