11021220112122 has 64 divisors (see below), whose sum is σ = 26819699512320. Its totient is φ = 3327064902000.

The previous prime is 11021220112121. The next prime is 11021220112159. The reversal of 11021220112122 is 22121102212011.

11021220112122 is a `hidden beast` number, since 110 + 212 + 201 + 121 + 22 = 666.

11021220112122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11021220112095 and 11021220112104.

It is not an unprimeable number, because it can be changed into a prime (11021220112121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35118004 + ... + 35430447.

It is an arithmetic number, because the mean of its divisors is an integer number (419057804880).

Almost surely, 2^{11021220112122} is an apocalyptic number.

11021220112122 is an abundant number, since it is smaller than the sum of its proper divisors (15798479400198).

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

11021220112122 is a wasteful number, since it uses less digits than its factorization.

11021220112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70548736 (or 70548730 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11021220112122 its reverse (22121102212011), we get a palindrome (33142322324133).

The spelling of 11021220112122 in words is "eleven trillion, twenty-one billion, two hundred twenty million, one hundred twelve thousand, one hundred twenty-two".