1230555122 has 4 divisors (see below), whose sum is σ = 1845832686. Its totient is φ = 615277560.

The previous prime is 1230555119. The next prime is 1230555169. The reversal of 1230555122 is 2215550321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2215550321 = 33769 ⋅65609.

It can be written as a sum of positive squares in only one way, i.e., 692268721 + 538286401 = 26311^2 + 23201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1230555091 and 1230555100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307638779 + ... + 307638782.

Almost surely, 2^1230555122 is an apocalyptic number.

1230555122 is a deficient number, since it is larger than the sum of its proper divisors (615277564).

1230555122 is an equidigital number, since it uses as much as digits as its factorization.

1230555122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615277563.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1230555122 is about 35079.2691200943. The cubic root of 1230555122 is about 1071.6024326080.

The spelling of 1230555122 in words is "one billion, two hundred thirty million, five hundred fifty-five thousand, one hundred twenty-two".