2225522656621 has 8 divisors (see below), whose sum is σ = 2438730088704. Its totient is φ = 2014129756320.

The previous prime is 2225522656603. The next prime is 2225522656639. The reversal of 2225522656621 is 1266562255222.

It is a happy number.

2225522656621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2225522656603) and next prime (2225522656639).

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

It is not a de Polignac number, because 2225522656621 - 2²⁷ = 2225388438893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225522656691) 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, 453630376 + ... + 453635281.

It is an arithmetic number, because the mean of its divisors is an integer number (304841261088).

Almost surely, 2^{2225522656621} is an apocalyptic number.

It is an amenable number.

2225522656621 is a deficient number, since it is larger than the sum of its proper divisors (213207432083).

2225522656621 is a wasteful number, since it uses less digits than its factorization.

2225522656621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907265891.

The product of its digits is 1728000, while the sum is 46.

The spelling of 2225522656621 in words is "two trillion, two hundred twenty-five billion, five hundred twenty-two million, six hundred fifty-six thousand, six hundred twenty-one".