2221510254 has 16 divisors (see below), whose sum is σ = 4445867520. Its totient is φ = 740028920.

The previous prime is 2221510253. The next prime is 2221510259. The reversal of 2221510254 is 4520151222.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221510253) 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, 108414 + ... + 127265.

It is an arithmetic number, because the mean of its divisors is an integer number (277866720).

Almost surely, 2^2221510254 is an apocalyptic number.

2221510254 is an abundant number, since it is smaller than the sum of its proper divisors (2224357266).

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

2221510254 is a wasteful number, since it uses less digits than its factorization.

2221510254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237255.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2221510254 is about 47132.8999107842. The cubic root of 2221510254 is about 1304.8165024359.

Adding to 2221510254 its reverse (4520151222), we get a palindrome (6741661476).

The spelling of 2221510254 in words is "two billion, two hundred twenty-one million, five hundred ten thousand, two hundred fifty-four".