1122002221220 has 48 divisors (see below), whose sum is σ = 2494992689280. Its totient is φ = 422369048064.

The previous prime is 1122002221217. The next prime is 1122002221231. The reversal of 1122002221220 is 221222002211.

It is a happy number.

It is a super-2 number, since 2×1122002221220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4672451 + ... + 4906709.

It is an arithmetic number, because the mean of its divisors is an integer number (51979014360).

Almost surely, 2^{1122002221220} is an apocalyptic number.

1122002221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122002221220 is an abundant number, since it is smaller than the sum of its proper divisors (1372990468060).

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

1122002221220 is a wasteful number, since it uses less digits than its factorization.

1122002221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248372 (or 248370 counting only the distinct ones).

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

Adding to 1122002221220 its reverse (221222002211), we get a palindrome (1343224223431).

The spelling of 1122002221220 in words is "one trillion, one hundred twenty-two billion, two million, two hundred twenty-one thousand, two hundred twenty".