1001022320020 has 24 divisors (see below), whose sum is σ = 2103620055264. Its totient is φ = 400128321696.

The previous prime is 1001022319967. The next prime is 1001022320047. The reversal of 1001022320020 is 200232201001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17508642 + ... + 17565721.

It is an arithmetic number, because the mean of its divisors is an integer number (87650835636).

Almost surely, 2^{1001022320020} is an apocalyptic number.

1001022320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001022320020 is an abundant number, since it is smaller than the sum of its proper divisors (1102597735244).

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

1001022320020 is a wasteful number, since it uses less digits than its factorization.

1001022320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35075799 (or 35075797 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1001022320020 its reverse (200232201001), we get a palindrome (1201254521021).

The spelling of 1001022320020 in words is "one trillion, one billion, twenty-two million, three hundred twenty thousand, twenty".