1012010021000 has 256 divisors, whose sum is σ = 2617131928320. Its totient is φ = 363217920000.

The previous prime is 1012010020943. The next prime is 1012010021003. The reversal of 1012010021000 is 1200102101.

1012010021000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1012010021003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 472679930 + ... + 472682070.

It is an arithmetic number, because the mean of its divisors is an integer number (10223171595).

Almost surely, 2^{1012010021000} is an apocalyptic number.

1012010021000 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 1012010021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308565964160).

1012010021000 is an abundant number, since it is smaller than the sum of its proper divisors (1605121907320).

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

1012010021000 is a wasteful number, since it uses less digits than its factorization.

1012010021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2699 counting only the distinct ones).

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

Adding to 1012010021000 its reverse (1200102101), we get a palindrome (1013210123101).

The spelling of 1012010021000 in words is "one trillion, twelve billion, ten million, twenty-one thousand".