1211211232122 has 32 divisors (see below), whose sum is σ = 2498757609600. Its totient is φ = 391109853888.

The previous prime is 1211211232111. The next prime is 1211211232181. The reversal of 1211211232122 is 2212321121121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11861622 + ... + 11963297.

It is an arithmetic number, because the mean of its divisors is an integer number (78086175300).

Almost surely, 2^{1211211232122} is an apocalyptic number.

1211211232122 is an abundant number, since it is smaller than the sum of its proper divisors (1287546377478).

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

1211211232122 is a wasteful number, since it uses less digits than its factorization.

1211211232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23825190.

The product of its digits is 192, while the sum is 21.

Adding to 1211211232122 its reverse (2212321121121), we get a palindrome (3423532353243).

The spelling of 1211211232122 in words is "one trillion, two hundred eleven billion, two hundred eleven million, two hundred thirty-two thousand, one hundred twenty-two".