1002002122220 has 48 divisors (see below), whose sum is σ = 2296349522208. Its totient is φ = 364228892160.

The previous prime is 1002002122171. The next prime is 1002002122241. The reversal of 1002002122220 is 222212002001.

It is a junction number, because it is equal to n+sod(n) for n = 1002002122195 and 1002002122204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253169 + ... + 1438088.

It is an arithmetic number, because the mean of its divisors is an integer number (47840615046).

Almost surely, 2^{1002002122220} is an apocalyptic number.

1002002122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002002122220 is an abundant number, since it is smaller than the sum of its proper divisors (1294347399988).

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

1002002122220 is a wasteful number, since it uses less digits than its factorization.

1002002122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693970 (or 1693968 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1002002122220 its reverse (222212002001), we get a palindrome (1224214124221).

The spelling of 1002002122220 in words is "one trillion, two billion, two million, one hundred twenty-two thousand, two hundred twenty".