221544616703142 has 32 divisors (see below), whose sum is σ = 454019063962464. Its totient is φ = 72027541555200.

The previous prime is 221544616703131. The next prime is 221544616703149. The reversal of 221544616703142 is 241307616445122.

It is a super-2 number, since 2×221544616703142² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221544616703091 and 221544616703100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221544616703149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120890359 + ... + 122709282.

It is an arithmetic number, because the mean of its divisors is an integer number (14188095748827).

Almost surely, 2^{221544616703142} is an apocalyptic number.

221544616703142 is an abundant number, since it is smaller than the sum of its proper divisors (232474447259322).

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

221544616703142 is a wasteful number, since it uses less digits than its factorization.

221544616703142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243603384.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 221544616703142 in words is "two hundred twenty-one trillion, five hundred forty-four billion, six hundred sixteen million, seven hundred three thousand, one hundred forty-two".