1300000002122 has 4 divisors (see below), whose sum is σ = 1950000003186. Its totient is φ = 650000001060.

The previous prime is 1300000002101. The next prime is 1300000002151. The reversal of 1300000002122 is 2212000000031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 984974866681 + 315025135441 = 992459^2 + 561271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325000000529 + ... + 325000000532.

Almost surely, 2^{1300000002122} is an apocalyptic number.

1300000002122 is a deficient number, since it is larger than the sum of its proper divisors (650000001064).

1300000002122 is an equidigital number, since it uses as much as digits as its factorization.

1300000002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650000001063.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 1300000002122 its reverse (2212000000031), we get a palindrome (3512000002153).

The spelling of 1300000002122 in words is "one trillion, three hundred billion, two thousand, one hundred twenty-two".