1021201210000 has 100 divisors (see below), whose sum is σ = 2473157136384. Its totient is φ = 408360400000.

The previous prime is 1021201209989. The next prime is 1021201210019. The reversal of 1021201210000 is 121021201.

1021201210000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×1021201210000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39096945 + ... + 39123055.

Almost surely, 2^{1021201210000} is an apocalyptic number.

1021201210000 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 1021201210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236578568192).

1021201210000 is an abundant number, since it is smaller than the sum of its proper divisors (1451955926384).

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

1021201210000 is an equidigital number, since it uses as much as digits as its factorization.

1021201210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30050 (or 30029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021201210000 its reverse (121021201), we get a palindrome (1021322231201).

The spelling of 1021201210000 in words is "one trillion, twenty-one billion, two hundred one million, two hundred ten thousand".