11021021122122 has 160 divisors (see below), whose sum is σ = 27047047224384. Its totient is φ = 3326477414400.

The previous prime is 11021021122087. The next prime is 11021021122127. The reversal of 11021021122122 is 22122112012011.

11021021122122 is a `hidden beast` number, since 1 + 1 + 0 + 210 + 211 + 221 + 22 = 666.

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 = 11021021122095 and 11021021122104.

It is not an unprimeable number, because it can be changed into a prime (11021021122127) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2259792748 + ... + 2259797624.

Almost surely, 2^{11021021122122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11021021122122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13523523612192).

11021021122122 is an abundant number, since it is smaller than the sum of its proper divisors (16026026102262).

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

11021021122122 is a wasteful number, since it uses less digits than its factorization.

11021021122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666 (or 9657 counting only the distinct ones).

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

Adding to 11021021122122 its reverse (22122112012011), we get a palindrome (33143133134133).

The spelling of 11021021122122 in words is "eleven trillion, twenty-one billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".