10221133525524 has 144 divisors (see below), whose sum is σ = 26363755454400. Its totient is φ = 3338333526528.

The previous prime is 10221133525459. The next prime is 10221133525529. The reversal of 10221133525524 is 42552533112201.

10221133525524 is a `hidden beast` number, since 1 + 0 + 2 + 21 + 1 + 33 + 52 + 552 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221133525529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 243588754 + ... + 243630710.

It is an arithmetic number, because the mean of its divisors is an integer number (183081635100).

Almost surely, 2^{10221133525524} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10221133525524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13181877727200).

10221133525524 is an abundant number, since it is smaller than the sum of its proper divisors (16142621928876).

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

10221133525524 is a wasteful number, since it uses less digits than its factorization.

10221133525524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42742 (or 42737 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 10221133525524 its reverse (42552533112201), we get a palindrome (52773666637725).

The spelling of 10221133525524 in words is "ten trillion, two hundred twenty-one billion, one hundred thirty-three million, five hundred twenty-five thousand, five hundred twenty-four".