1122220121022 has 128 divisors (see below), whose sum is σ = 3348349240320. Its totient is φ = 269063752320.

The previous prime is 1122220121021. The next prime is 1122220121039. The reversal of 1122220121022 is 2201210222211.

It is a happy number.

1122220121022 is a `hidden beast` number, since 11 + 222 + 201 + 210 + 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 = 1122220120986 and 1122220121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122220121021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10326493 + ... + 10434600.

It is an arithmetic number, because the mean of its divisors is an integer number (26158978440).

Almost surely, 2^{1122220121022} is an apocalyptic number.

1122220121022 is an abundant number, since it is smaller than the sum of its proper divisors (2226129119298).

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

1122220121022 is a wasteful number, since it uses less digits than its factorization.

1122220121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20761135 (or 20761129 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1122220121022 its reverse (2201210222211), we get a palindrome (3323430343233).

The spelling of 1122220121022 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, twenty-two".