1000012020020 has 48 divisors (see below), whose sum is σ = 2380595427840. Its totient is φ = 349801773696.

The previous prime is 1000012020019. The next prime is 1000012020037. The reversal of 1000012020020 is 200202100001.

It is a super-3 number, since 3×1000012020020³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101210852 + ... + 101220731.

It is an arithmetic number, because the mean of its divisors is an integer number (49595738080).

Almost surely, 2^{1000012020020} is an apocalyptic number.

1000012020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000012020020 is an abundant number, since it is smaller than the sum of its proper divisors (1380583407820).

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

1000012020020 is a wasteful number, since it uses less digits than its factorization.

1000012020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202431624 (or 202431622 counting only the distinct ones).

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

Adding to 1000012020020 its reverse (200202100001), we get a palindrome (1200214120021).

The spelling of 1000012020020 in words is "one trillion, twelve million, twenty thousand, twenty".