1211331232122 has 32 divisors (see below), whose sum is σ = 2643831926784. Its totient is φ = 366941262000.

The previous prime is 1211331232057. The next prime is 1211331232129. The reversal of 1211331232122 is 2212321331121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211331232092 and 1211331232101.

It is not an unprimeable number, because it can be changed into a prime (1211331232129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3030618 + ... + 3406949.

It is an arithmetic number, because the mean of its divisors is an integer number (82619747712).

Almost surely, 2^{1211331232122} is an apocalyptic number.

1211331232122 is an abundant number, since it is smaller than the sum of its proper divisors (1432500694662).

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

1211331232122 is a wasteful number, since it uses less digits than its factorization.

1211331232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440434.

The product of its digits is 864, while the sum is 24.

Adding to 1211331232122 its reverse (2212321331121), we get a palindrome (3423652563243).

The spelling of 1211331232122 in words is "one trillion, two hundred eleven billion, three hundred thirty-one million, two hundred thirty-two thousand, one hundred twenty-two".