1012001010020 has 96 divisors (see below), whose sum is σ = 2853418288896. Its totient is φ = 291165120000.

The previous prime is 1012001009977. The next prime is 1012001010049. The reversal of 1012001010020 is 200101002101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25254731 + ... + 25294770.

It is an arithmetic number, because the mean of its divisors is an integer number (29723107176).

Almost surely, 2^{1012001010020} is an apocalyptic number.

1012001010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012001010020 is an abundant number, since it is smaller than the sum of its proper divisors (1841417278876).

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

1012001010020 is a wasteful number, since it uses less digits than its factorization.

1012001010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50549541 (or 50549539 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1012001010020 its reverse (200101002101), we get a palindrome (1212102012121).

The spelling of 1012001010020 in words is "one trillion, twelve billion, one million, ten thousand, twenty".