221057438741 has 8 divisors (see below), whose sum is σ = 233136969120. Its totient is φ = 209022401232.

The previous prime is 221057438731. The next prime is 221057438743. The reversal of 221057438741 is 147834750122.

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 221057438741 - 2³⁴ = 203877569557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221057438692 and 221057438701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221057438743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11113010 + ... + 11132883.

It is an arithmetic number, because the mean of its divisors is an integer number (29142121140).

Almost surely, 2^221057438741 is an apocalyptic number.

It is an amenable number.

221057438741 is a deficient number, since it is larger than the sum of its proper divisors (12079530379).

221057438741 is a wasteful number, since it uses less digits than its factorization.

221057438741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22246435.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 221057438741 in words is "two hundred twenty-one billion, fifty-seven million, four hundred thirty-eight thousand, seven hundred forty-one".