270220840521 has 4 divisors (see below), whose sum is σ = 360294454032. Its totient is φ = 180147227012.

The previous prime is 270220840507. The next prime is 270220840553. The reversal of 270220840521 is 125048022072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 270220840521 - 2⁹ = 270220840009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (270220440521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45036806751 + ... + 45036806756.

It is an arithmetic number, because the mean of its divisors is an integer number (90073613508).

Almost surely, 2^270220840521 is an apocalyptic number.

It is an amenable number.

270220840521 is a deficient number, since it is larger than the sum of its proper divisors (90073613511).

270220840521 is an equidigital number, since it uses as much as digits as its factorization.

270220840521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90073613510.

The product of its (nonzero) digits is 17920, while the sum is 33.

Adding to 270220840521 its reverse (125048022072), we get a palindrome (395268862593).

The spelling of 270220840521 in words is "two hundred seventy billion, two hundred twenty million, eight hundred forty thousand, five hundred twenty-one".