120225511 has 4 divisors (see below), whose sum is σ = 137400592. Its totient is φ = 103050432.

The previous prime is 120225509. The next prime is 120225517. The reversal of 120225511 is 115522021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115522021 = 17 ⋅6795413.

It is a cyclic number.

It is not a de Polignac number, because 120225511 - 2¹ = 120225509 is a prime.

It is a super-2 number, since 2×120225511² = 28908346990422242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120225517) 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, 8587530 + ... + 8587543.

It is an arithmetic number, because the mean of its divisors is an integer number (34350148).

Almost surely, 2^120225511 is an apocalyptic number.

120225511 is a deficient number, since it is larger than the sum of its proper divisors (17175081).

120225511 is an equidigital number, since it uses as much as digits as its factorization.

120225511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17175080.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 120225511 is about 10964.7394405886. The cubic root of 120225511 is about 493.5511981584.

Adding to 120225511 its reverse (115522021), we get a palindrome (235747532).

The spelling of 120225511 in words is "one hundred twenty million, two hundred twenty-five thousand, five hundred eleven".