1002122200020 has 48 divisors (see below), whose sum is σ = 2806356486528. Its totient is φ = 267193127040.

The previous prime is 1002122200003. The next prime is 1002122200033. The reversal of 1002122200020 is 200022212001.

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 = 1002122199969 and 1002122200005.

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, 822259 + ... + 1637178.

It is an arithmetic number, because the mean of its divisors is an integer number (58465760136).

Almost surely, 2^{1002122200020} is an apocalyptic number.

1002122200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002122200020 is an abundant number, since it is smaller than the sum of its proper divisors (1804234286508).

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

1002122200020 is a wasteful number, since it uses less digits than its factorization.

1002122200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466240 (or 2466238 counting only the distinct ones).

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

Adding to 1002122200020 its reverse (200022212001), we get a palindrome (1202144412021).

The spelling of 1002122200020 in words is "one trillion, two billion, one hundred twenty-two million, two hundred thousand, twenty".