22001003020 has 24 divisors (see below), whose sum is σ = 46307368800. Its totient is φ = 8780351232.

The previous prime is 22001002987. The next prime is 22001003053. The reversal of 22001003020 is 2030010022.

It is an interprime number because it is at equal distance from previous prime (22001002987) and next prime (22001003053).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22001002988 and 22001003006.

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 7 ways as a sum of consecutive naturals, for example, 1244125 + ... + 1261684.

It is an arithmetic number, because the mean of its divisors is an integer number (1929473700).

Almost surely, 2^22001003020 is an apocalyptic number.

22001003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001003020 is an abundant number, since it is smaller than the sum of its proper divisors (24306365780).

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

22001003020 is a wasteful number, since it uses less digits than its factorization.

22001003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506257 (or 2506255 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 22001003020 its reverse (2030010022), we get a palindrome (24031013042).

The spelling of 22001003020 in words is "twenty-two billion, one million, three thousand, twenty".