1122211022022 has 56 divisors (see below), whose sum is σ = 2528078229864. Its totient is φ = 373439242944.

The previous prime is 1122211021999. The next prime is 1122211022077. The reversal of 1122211022022 is 2202201122211.

It is a happy number.

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 = 1122211021986 and 1122211022004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 215613 + ... + 1513575.

Almost surely, 2^{1122211022022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122211022022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264039114932).

1122211022022 is an abundant number, since it is smaller than the sum of its proper divisors (1405867207842).

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

1122211022022 is an equidigital number, since it uses as much as digits as its factorization.

1122211022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298576 (or 1298561 counting only the distinct ones).

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

Adding to 1122211022022 its reverse (2202201122211), we get a palindrome (3324412144233).

The spelling of 1122211022022 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, twenty-two thousand, twenty-two".