11221122122012 has 24 divisors (see below), whose sum is σ = 21550418547840. Its totient is φ = 5069968075760.

The previous prime is 11221122122003. The next prime is 11221122122029. The reversal of 11221122122012 is 21022122112211.

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, 763542062 + ... + 763556757.

It is an arithmetic number, because the mean of its divisors is an integer number (897934106160).

Almost surely, 2^{11221122122012} is an apocalyptic number.

It is an amenable number.

11221122122012 is a deficient number, since it is larger than the sum of its proper divisors (10329296425828).

11221122122012 is a wasteful number, since it uses less digits than its factorization.

11221122122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527099001 (or 1527098999 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11221122122012 its reverse (21022122112211), we get a palindrome (32243244234223).

The spelling of 11221122122012 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-two thousand, twelve".