11111121021022 has 16 divisors (see below), whose sum is σ = 18181886796144. Its totient is φ = 5050495000000.

The previous prime is 11111121021019. The next prime is 11111121021023. The reversal of 11111121021022 is 22012012111111.

It is a junction number, because it is equal to n+sod(n) for n = 11111121020987 and 11111121021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111121021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12119772 + ... + 13004272.

It is an arithmetic number, because the mean of its divisors is an integer number (1136367924759).

Almost surely, 2^{11111121021022} is an apocalyptic number.

11111121021022 is a deficient number, since it is larger than the sum of its proper divisors (7070765775122).

11111121021022 is a wasteful number, since it uses less digits than its factorization.

11111121021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455515.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11111121021022 its reverse (22012012111111), we get a palindrome (33123133132133).

The spelling of 11111121021022 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-one million, twenty-one thousand, twenty-two".