1211131322022 has 16 divisors (see below), whose sum is σ = 2481342221232. Its totient is φ = 393863844480.

The previous prime is 1211131321987. The next prime is 1211131322039. The reversal of 1211131322022 is 2202231311121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211131322022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461648783 + ... + 2461649274.

It is an arithmetic number, because the mean of its divisors is an integer number (155083888827).

Almost surely, 2^{1211131322022} is an apocalyptic number.

1211131322022 is an abundant number, since it is smaller than the sum of its proper divisors (1270210899210).

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

1211131322022 is a wasteful number, since it uses less digits than its factorization.

1211131322022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923298103.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1211131322022 its reverse (2202231311121), we get a palindrome (3413362633143).

The spelling of 1211131322022 in words is "one trillion, two hundred eleven billion, one hundred thirty-one million, three hundred twenty-two thousand, twenty-two".