1122131213220 has 48 divisors (see below), whose sum is σ = 3142226420928. Its totient is φ = 299210321280.

The previous prime is 1122131213219. The next prime is 1122131213309. The reversal of 1122131213220 is 223121312211.

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, 31171 + ... + 1498410.

It is an arithmetic number, because the mean of its divisors is an integer number (65463050436).

Almost surely, 2^{1122131213220} is an apocalyptic number.

1122131213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122131213220 is an abundant number, since it is smaller than the sum of its proper divisors (2020095207708).

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

1122131213220 is a wasteful number, since it uses less digits than its factorization.

1122131213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541820 (or 1541818 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1122131213220 its reverse (223121312211), we get a palindrome (1345252525431).

The spelling of 1122131213220 in words is "one trillion, one hundred twenty-two billion, one hundred thirty-one million, two hundred thirteen thousand, two hundred twenty".