542225639221 has 8 divisors (see below), whose sum is σ = 619718792000. Its totient is φ = 464740573248.

The previous prime is 542225639191. The next prime is 542225639269. The reversal of 542225639221 is 122936522245.

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

It is not a de Polignac number, because 542225639221 - 2³³ = 533635704629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542225639281) 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, 1877331 + ... + 2146816.

It is an arithmetic number, because the mean of its divisors is an integer number (77464849000).

Almost surely, 2^542225639221 is an apocalyptic number.

It is an amenable number.

542225639221 is a deficient number, since it is larger than the sum of its proper divisors (77493152779).

542225639221 is a wasteful number, since it uses less digits than its factorization.

542225639221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043403.

The product of its digits is 518400, while the sum is 43.

The spelling of 542225639221 in words is "five hundred forty-two billion, two hundred twenty-five million, six hundred thirty-nine thousand, two hundred twenty-one".