2201022521 has 8 divisors (see below), whose sum is σ = 2332882944. Its totient is φ = 2069427520.

The previous prime is 2201022517. The next prime is 2201022547. The reversal of 2201022521 is 1252201022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201022521 - 2² = 2201022517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201022521.

It is not an unprimeable number, because it can be changed into a prime (2201022581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49145 + ... + 82566.

It is an arithmetic number, because the mean of its divisors is an integer number (291610368).

Almost surely, 2^2201022521 is an apocalyptic number.

It is an amenable number.

2201022521 is a deficient number, since it is larger than the sum of its proper divisors (131860423).

2201022521 is a wasteful number, since it uses less digits than its factorization.

2201022521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132711.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2201022521 is about 46915.0564424684. The cubic root of 2201022521 is about 1300.7929129248.

Adding to 2201022521 its reverse (1252201022), we get a palindrome (3453223543).

The spelling of 2201022521 in words is "two billion, two hundred one million, twenty-two thousand, five hundred twenty-one".