2012021000000 has 392 divisors, whose sum is σ = 5501331457056. Its totient is φ = 724000000000.

The previous prime is 2012020999991. The next prime is 2012021000047. The reversal of 2012021000000 is 1202102.

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 55 ways as a sum of consecutive naturals, for example, 1110999095 + ... + 1111000905.

Almost surely, 2^{2012021000000} is an apocalyptic number.

2012021000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012021000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750665728528).

2012021000000 is an abundant number, since it is smaller than the sum of its proper divisors (3489310457056).

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

2012021000000 is an equidigital number, since it uses as much as digits as its factorization.

2012021000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965 (or 1930 counting only the distinct ones).

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

Adding to 2012021000000 its reverse (1202102), we get a palindrome (2012022202102).

The spelling of 2012021000000 in words is "two trillion, twelve billion, twenty-one million", and thus it is an aban number and an uban number.