1209010122 has 24 divisors (see below), whose sum is σ = 2626559364. Its totient is φ = 401920704.

The previous prime is 1209010073. The next prime is 1209010151. The reversal of 1209010122 is 2210109021.

It can be written as a sum of positive squares in 2 ways, for example, as 1171076841 + 37933281 = 34221^2 + 6159^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1209010095 and 1209010104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83323 + ... + 96750.

Almost surely, 2^1209010122 is an apocalyptic number.

1209010122 is an abundant number, since it is smaller than the sum of its proper divisors (1417549242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1209010122 is a wasteful number, since it uses less digits than its factorization.

1209010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180454 (or 180451 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1209010122 is about 34770.8228548017. The cubic root of 1209010122 is about 1065.3115745122.

Adding to 1209010122 its reverse (2210109021), we get a palindrome (3419119143).

The spelling of 1209010122 in words is "one billion, two hundred nine million, ten thousand, one hundred twenty-two".