205325022531021 has 8 divisors (see below), whose sum is σ = 273788443259040. Its totient is φ = 136872475078512.

The previous prime is 205325022531017. The next prime is 205325022531029. The reversal of 205325022531021 is 120135220523502.

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

It is not a de Polignac number, because 205325022531021 - 2² = 205325022531017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205325022531029) 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, 2718274815 + ... + 2718350348.

It is an arithmetic number, because the mean of its divisors is an integer number (34223555407380).

Almost surely, 2^{205325022531021} is an apocalyptic number.

It is an amenable number.

205325022531021 is a deficient number, since it is larger than the sum of its proper divisors (68463420728019).

205325022531021 is a wasteful number, since it uses less digits than its factorization.

205325022531021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5436637755.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 205325022531021 in words is "two hundred five trillion, three hundred twenty-five billion, twenty-two million, five hundred thirty-one thousand, twenty-one".