2221002004530 has 64 divisors (see below), whose sum is σ = 5342426788608. Its totient is φ = 590932869120.

The previous prime is 2221002004519. The next prime is 2221002004537. The reversal of 2221002004530 is 354002001222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2221002004497 and 2221002004506.

It is not an unprimeable number, because it can be changed into a prime (2221002004537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25102770 + ... + 25191090.

It is an arithmetic number, because the mean of its divisors is an integer number (83475418572).

Almost surely, 2^{2221002004530} is an apocalyptic number.

2221002004530 is an abundant number, since it is smaller than the sum of its proper divisors (3121424784078).

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

2221002004530 is a wasteful number, since it uses less digits than its factorization.

2221002004530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90211.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 2221002004530 its reverse (354002001222), we get a palindrome (2575004005752).

The spelling of 2221002004530 in words is "two trillion, two hundred twenty-one billion, two million, four thousand, five hundred thirty".