254334641221 has 4 divisors (see below), whose sum is σ = 254527174444. Its totient is φ = 254142108000.

The previous prime is 254334641219. The next prime is 254334641261. The reversal of 254334641221 is 122146433452.

254334641221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 235820956996 + 18513684225 = 485614^2 + 136065^2 .

It is a cyclic number.

It is not a de Polignac number, because 254334641221 - 2¹ = 254334641219 is a prime.

It is a super-2 number, since 2×254334641221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254334641261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96264630 + ... + 96267271.

It is an arithmetic number, because the mean of its divisors is an integer number (63631793611).

Almost surely, 2^254334641221 is an apocalyptic number.

It is an amenable number.

254334641221 is a deficient number, since it is larger than the sum of its proper divisors (192533223).

254334641221 is a wasteful number, since it uses less digits than its factorization.

254334641221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192533222.

The product of its digits is 138240, while the sum is 37.

The spelling of 254334641221 in words is "two hundred fifty-four billion, three hundred thirty-four million, six hundred forty-one thousand, two hundred twenty-one".