1012021000000 has 196 divisors, whose sum is σ = 2518139642400. Its totient is φ = 403537600000.

The previous prime is 1012020999961. The next prime is 1012021000007. The reversal of 1012021000000 is 1202101.

1012021000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012021000007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 358998591 + ... + 359001409.

Almost surely, 2^{1012021000000} is an apocalyptic number.

1012021000000 is a gapful number since it is divisible by the number (10) 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 1012021000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259069821200).

1012021000000 is an abundant number, since it is smaller than the sum of its proper divisors (1506118642400).

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

1012021000000 is an frugal number, since it uses more digits than its factorization.

1012021000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 1012021000000 its reverse (1202101), we get a palindrome (1012022202101).

The spelling of 1012021000000 in words is "one trillion, twelve billion, twenty-one million", and thus it is an aban number and an uban number.