1122012012220 has 48 divisors (see below), whose sum is σ = 2575126931328. Its totient is φ = 407258429760.

The previous prime is 1122012012203. The next prime is 1122012012239. The reversal of 1122012012220 is 222102102211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1122012012194 and 1122012012203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4541502 + ... + 4782181.

It is an arithmetic number, because the mean of its divisors is an integer number (53648477736).

Almost surely, 2^{1122012012220} is an apocalyptic number.

1122012012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122012012220 is an abundant number, since it is smaller than the sum of its proper divisors (1453114919108).

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

1122012012220 is a wasteful number, since it uses less digits than its factorization.

1122012012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324250 (or 9324248 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1122012012220 its reverse (222102102211), we get a palindrome (1344114114431).

The spelling of 1122012012220 in words is "one trillion, one hundred twenty-two billion, twelve million, twelve thousand, two hundred twenty".