270042221 has 4 divisors (see below), whose sum is σ = 272103744. Its totient is φ = 267980700.

The previous prime is 270042217. The next prime is 270042247. The reversal of 270042221 is 122240072.

It is a happy number.

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 270042221 - 2² = 270042217 is a prime.

It is a super-2 number, since 2×270042221² = 145845602245225682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 270042193 and 270042202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270042251) 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, 1030565 + ... + 1030826.

It is an arithmetic number, because the mean of its divisors is an integer number (68025936).

Almost surely, 2^270042221 is an apocalyptic number.

It is an amenable number.

270042221 is a deficient number, since it is larger than the sum of its proper divisors (2061523).

270042221 is a wasteful number, since it uses less digits than its factorization.

270042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061522.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 270042221 is about 16432.9614190504. The cubic root of 270042221 is about 646.3640950266.

Adding to 270042221 its reverse (122240072), we get a palindrome (392282293).

The spelling of 270042221 in words is "two hundred seventy million, forty-two thousand, two hundred twenty-one".