1222002001020 has 48 divisors (see below), whose sum is σ = 3423482818560. Its totient is φ = 325688417856.

The previous prime is 1222002000977. The next prime is 1222002001021. The reversal of 1222002001020 is 201002002221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1222002000987 and 1222002001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002001021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5476660 + ... + 5695419.

It is an arithmetic number, because the mean of its divisors is an integer number (71322558720).

Almost surely, 2^{1222002001020} is an apocalyptic number.

1222002001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222002001020 is an abundant number, since it is smaller than the sum of its proper divisors (2201480817540).

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

1222002001020 is a wasteful number, since it uses less digits than its factorization.

1222002001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11173914 (or 11173912 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1222002001020 its reverse (201002002221), we get a palindrome (1423004003241).

The spelling of 1222002001020 in words is "one trillion, two hundred twenty-two billion, two million, one thousand, twenty".