1122221022020 has 24 divisors (see below), whose sum is σ = 2693330453184. Its totient is φ = 384761493216.

The previous prime is 1122221022011. The next prime is 1122221022079. The reversal of 1122221022020 is 202201222211.

It is a happy number.

It is a super-2 number, since 2×1122221022020² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1122221022020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4007932082 + ... + 4007932361.

It is an arithmetic number, because the mean of its divisors is an integer number (112222102216).

Almost surely, 2^{1122221022020} is an apocalyptic number.

1122221022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122221022020 is an abundant number, since it is smaller than the sum of its proper divisors (1571109431164).

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

1122221022020 is a wasteful number, since it uses less digits than its factorization.

1122221022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015864459 (or 8015864457 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1122221022020 its reverse (202201222211), we get a palindrome (1324422244231).

The spelling of 1122221022020 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, twenty".