122130345 has 16 divisors (see below), whose sum is σ = 203905152. Its totient is φ = 62304000.

The previous prime is 122130343. The next prime is 122130353. The reversal of 122130345 is 543031221.

It is not a de Polignac number, because 122130345 - 2¹ = 122130343 is a prime.

It is a super-3 number, since 3×122130345³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122130343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176656 + ... + 177345.

It is an arithmetic number, because the mean of its divisors is an integer number (12744072).

Almost surely, 2^122130345 is an apocalyptic number.

122130345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122130345 is a deficient number, since it is larger than the sum of its proper divisors (81774807).

122130345 is a wasteful number, since it uses less digits than its factorization.

122130345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354032.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 122130345 is about 11051.2598829274. The cubic root of 122130345 is about 496.1441343710.

Adding to 122130345 its reverse (543031221), we get a palindrome (665161566).

The spelling of 122130345 in words is "one hundred twenty-two million, one hundred thirty thousand, three hundred forty-five".