2210126561 has 8 divisors (see below), whose sum is σ = 2216004000. Its totient is φ = 2204258400.

The previous prime is 2210126551. The next prime is 2210126579. The reversal of 2210126561 is 1656210122.

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 2210126561 - 2¹⁰ = 2210125537 is a prime.

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 2210126561.

It is not an unprimeable number, because it can be changed into a prime (2210126551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 773786 + ... + 776636.

It is an arithmetic number, because the mean of its divisors is an integer number (277000500).

Almost surely, 2^2210126561 is an apocalyptic number.

It is an amenable number.

2210126561 is a deficient number, since it is larger than the sum of its proper divisors (5877439).

2210126561 is a wasteful number, since it uses less digits than its factorization.

2210126561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2210126561 is about 47011.9831638700. The cubic root of 2210126561 is about 1302.5839259806.

Adding to 2210126561 its reverse (1656210122), we get a palindrome (3866336683).

The spelling of 2210126561 in words is "two billion, two hundred ten million, one hundred twenty-six thousand, five hundred sixty-one".