1021238800050 has 192 divisors, whose sum is σ = 3017088322560. Its totient is φ = 223726821120.

The previous prime is 1021238800031. The next prime is 1021238800063. The reversal of 1021238800050 is 500088321201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1021238799990 and 1021238800017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2406781 + ... + 2799119.

It is an arithmetic number, because the mean of its divisors is an integer number (15714001680).

Almost surely, 2^{1021238800050} is an apocalyptic number.

1021238800050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021238800050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508544161280).

1021238800050 is an abundant number, since it is smaller than the sum of its proper divisors (1995849522510).

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

1021238800050 is a wasteful number, since it uses less digits than its factorization.

1021238800050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392465 (or 392460 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The spelling of 1021238800050 in words is "one trillion, twenty-one billion, two hundred thirty-eight million, eight hundred thousand, fifty".