11221120121012 has 12 divisors (see below), whose sum is σ = 20093633705376. Its totient is φ = 5480081919480.

The previous prime is 11221120120979. The next prime is 11221120121027. The reversal of 11221120121012 is 21012102112211.

11221120121012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32619535064 + ... + 32619535407.

It is an arithmetic number, because the mean of its divisors is an integer number (1674469475448).

Almost surely, 2^{11221120121012} is an apocalyptic number.

It is an amenable number.

11221120121012 is a deficient number, since it is larger than the sum of its proper divisors (8872513584364).

11221120121012 is a wasteful number, since it uses less digits than its factorization.

11221120121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65239070518 (or 65239070516 counting only the distinct ones).

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

Adding to 11221120121012 its reverse (21012102112211), we get a palindrome (32233222233223).

The spelling of 11221120121012 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, twelve".