1012020002000 has 80 divisors (see below), whose sum is σ = 2796645027072. Its totient is φ = 346978281600.

The previous prime is 1012020001981. The next prime is 1012020002017. The reversal of 1012020002000 is 2000202101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

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, 36129572 + ... + 36157571.

Almost surely, 2^{1012020002000} is an apocalyptic number.

1012020002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012020002000 is an abundant number, since it is smaller than the sum of its proper divisors (1784625025072).

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

1012020002000 is an equidigital number, since it uses as much as digits as its factorization.

1012020002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72287173 (or 72287157 counting only the distinct ones).

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

Adding to 1012020002000 its reverse (2000202101), we get a palindrome (1014020204101).

The spelling of 1012020002000 in words is "one trillion, twelve billion, twenty million, two thousand".