11121001222122 has 24 divisors (see below), whose sum is σ = 26286002889120. Its totient is φ = 3370000370280.

The previous prime is 11121001222103. The next prime is 11121001222129. The reversal of 11121001222122 is 22122210012111.

11121001222122 is a `hidden beast` number, since 111 + 210 + 0 + 1 + 222 + 122 = 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 = 11121001222095 and 11121001222104.

It is not an unprimeable number, because it can be changed into a prime (11121001222129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28083336222 + ... + 28083336617.

It is an arithmetic number, because the mean of its divisors is an integer number (1095250120380).

Almost surely, 2^{11121001222122} is an apocalyptic number.

11121001222122 is an abundant number, since it is smaller than the sum of its proper divisors (15165001666998).

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

11121001222122 is a wasteful number, since it uses less digits than its factorization.

11121001222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56166672858 (or 56166672855 counting only the distinct ones).

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

Adding to 11121001222122 its reverse (22122210012111), we get a palindrome (33243211234233).

The spelling of 11121001222122 in words is "eleven trillion, one hundred twenty-one billion, one million, two hundred twenty-two thousand, one hundred twenty-two".