11221110122012 has 72 divisors (see below), whose sum is σ = 23511024483408. Its totient is φ = 4669516857600.

The previous prime is 11221110121961. The next prime is 11221110122077. The reversal of 11221110122012 is 21022101112211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1613303 + ... + 5004494.

It is an arithmetic number, because the mean of its divisors is an integer number (326542006714).

Almost surely, 2^{11221110122012} is an apocalyptic number.

It is an amenable number.

11221110122012 is an abundant number, since it is smaller than the sum of its proper divisors (12289914361396).

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

11221110122012 is a wasteful number, since it uses less digits than its factorization.

11221110122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618067 (or 6618058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221110122012 its reverse (21022101112211), we get a palindrome (32243211234223).

The spelling of 11221110122012 in words is "eleven trillion, two hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, twelve".