530220121 has 4 divisors (see below), whose sum is σ = 530708992. Its totient is φ = 529731252.

The previous prime is 530220107. The next prime is 530220149. The reversal of 530220121 is 121022035.

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 530220121 - 2⁷ = 530219993 is a prime.

It is a super-2 number, since 2×530220121² = 562266753426509282, 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 = 530220095 and 530220104.

It is not an unprimeable number, because it can be changed into a prime (530220161) 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, 242805 + ... + 244978.

It is an arithmetic number, because the mean of its divisors is an integer number (132677248).

Almost surely, 2^530220121 is an apocalyptic number.

It is an amenable number.

530220121 is a deficient number, since it is larger than the sum of its proper divisors (488871).

530220121 is a wasteful number, since it uses less digits than its factorization.

530220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488870.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 530220121 is about 23026.5090927826. The cubic root of 530220121 is about 809.3792536183.

Adding to 530220121 its reverse (121022035), we get a palindrome (651242156).

The spelling of 530220121 in words is "five hundred thirty million, two hundred twenty thousand, one hundred twenty-one".