427121211 has 8 divisors (see below), whose sum is σ = 621267264. Its totient is φ = 258861320.

The previous prime is 427121183. The next prime is 427121213. The reversal of 427121211 is 112121724.

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

It is a cyclic number.

It is not a de Polignac number, because 427121211 - 2⁵ = 427121179 is a prime.

It is a super-2 number, since 2×427121211² = 364865057772213042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6471501 + ... + 6471566.

It is an arithmetic number, because the mean of its divisors is an integer number (77658408).

Almost surely, 2^427121211 is an apocalyptic number.

427121211 is a deficient number, since it is larger than the sum of its proper divisors (194146053).

427121211 is a wasteful number, since it uses less digits than its factorization.

427121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12943081.

The product of its digits is 224, while the sum is 21.

The square root of 427121211 is about 20666.9110173727. The cubic root of 427121211 is about 753.0960673469.

Adding to 427121211 its reverse (112121724), we get a palindrome (539242935).

The spelling of 427121211 in words is "four hundred twenty-seven million, one hundred twenty-one thousand, two hundred eleven".