1020120122 has 24 divisors (see below), whose sum is σ = 1884714804. Its totient is φ = 411476352.

The previous prime is 1020120121. The next prime is 1020120161. The reversal of 1020120122 is 2210210201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 830534761 + 189585361 = 28819^2 + 13769^2 .

It is not an unprimeable number, because it can be changed into a prime (1020120121) 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 11 ways as a sum of consecutive naturals, for example, 304493 + ... + 307824.

Almost surely, 2^1020120122 is an apocalyptic number.

1020120122 is a deficient number, since it is larger than the sum of its proper divisors (864594682).

1020120122 is a wasteful number, since it uses less digits than its factorization.

1020120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612350 (or 612343 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1020120122 is about 31939.3193728357. The cubic root of 1020120122 is about 1006.6622235427.

Adding to 1020120122 its reverse (2210210201), we get a palindrome (3230330323).

The spelling of 1020120122 in words is "one billion, twenty million, one hundred twenty thousand, one hundred twenty-two".