1121221000211 has 8 divisors (see below), whose sum is σ = 1278496344384. Its totient is φ = 974092452480.

The previous prime is 1121221000171. The next prime is 1121221000283. The reversal of 1121221000211 is 1120001221211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121221000211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121221000411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536698875 + ... + 2536699316.

It is an arithmetic number, because the mean of its divisors is an integer number (159812043048).

Almost surely, 2^{1121221000211} is an apocalyptic number.

1121221000211 is a deficient number, since it is larger than the sum of its proper divisors (157275344173).

1121221000211 is a wasteful number, since it uses less digits than its factorization.

1121221000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073398221.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1121221000211 its reverse (1120001221211), we get a palindrome (2241222221422).

It can be divided in two parts, 1121221000 and 211, that added together give a palindrome (1121221211).

The spelling of 1121221000211 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred eleven", and thus it is an aban number.