1211124211122 has 16 divisors (see below), whose sum is σ = 2768283911232. Its totient is φ = 346035488880.

The previous prime is 1211124211117. The next prime is 1211124211153. The reversal of 1211124211122 is 2211124211121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14418145329 + ... + 14418145412.

It is an arithmetic number, because the mean of its divisors is an integer number (173017744452).

Almost surely, 2^{1211124211122} is an apocalyptic number.

1211124211122 is an abundant number, since it is smaller than the sum of its proper divisors (1557159700110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211124211122 is a wasteful number, since it uses less digits than its factorization.

1211124211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28836290753.

The product of its digits is 128, while the sum is 21.

Adding to 1211124211122 its reverse (2211124211121), we get a palindrome (3422248422243).

Subtracting 1211124211122 from its reverse (2211124211121), we obtain a palindrome (999999999999).

The spelling of 1211124211122 in words is "one trillion, two hundred eleven billion, one hundred twenty-four million, two hundred eleven thousand, one hundred twenty-two".