10021211200530 has 128 divisors (see below), whose sum is σ = 26801980047360. Its totient is φ = 2664451247040.

The previous prime is 10021211200513. The next prime is 10021211200543. The reversal of 10021211200530 is 3500211212001.

10021211200530 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 12 + 1 + 120 + 0 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 621385327 + ... + 621401453.

It is an arithmetic number, because the mean of its divisors is an integer number (209390469120).

Almost surely, 2^{10021211200530} is an apocalyptic number.

10021211200530 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 10021211200530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13400990023680).

10021211200530 is an abundant number, since it is smaller than the sum of its proper divisors (16780768846830).

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

10021211200530 is a wasteful number, since it uses less digits than its factorization.

10021211200530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22781 (or 22775 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10021211200530 its reverse (3500211212001), we get a palindrome (13521422412531).

The spelling of 10021211200530 in words is "ten trillion, twenty-one billion, two hundred eleven million, two hundred thousand, five hundred thirty".