1122221211020 has 96 divisors (see below), whose sum is σ = 2919977424000. Its totient is φ = 352780775424.

The previous prime is 1122221211019. The next prime is 1122221211043. The reversal of 1122221211020 is 201121222211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122221211020.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1797965 + ... + 2340324.

It is an arithmetic number, because the mean of its divisors is an integer number (30416431500).

Almost surely, 2^{1122221211020} is an apocalyptic number.

1122221211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122221211020 is an abundant number, since it is smaller than the sum of its proper divisors (1797756212980).

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

1122221211020 is a wasteful number, since it uses less digits than its factorization.

1122221211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138467 (or 4138465 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1122221211020 its reverse (201121222211), we get a palindrome (1323342433231).

The spelling of 1122221211020 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, twenty".