1211122200211 has 8 divisors (see below), whose sum is σ = 1509970535424. Its totient is φ = 943731584520.

The previous prime is 1211122200187. The next prime is 1211122200269. The reversal of 1211122200211 is 1120022211121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211122200211 - 2¹¹ = 1211122198163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211122200611) 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, 7864429795 + ... + 7864429948.

It is an arithmetic number, because the mean of its divisors is an integer number (188746316928).

Almost surely, 2^{1211122200211} is an apocalyptic number.

1211122200211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1211122200211 is a deficient number, since it is larger than the sum of its proper divisors (298848335213).

1211122200211 is a wasteful number, since it uses less digits than its factorization.

1211122200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15728859761.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1211122200211 its reverse (1120022211121), we get a palindrome (2331144411332).

The spelling of 1211122200211 in words is "one trillion, two hundred eleven billion, one hundred twenty-two million, two hundred thousand, two hundred eleven".