1209021014 has 4 divisors (see below), whose sum is σ = 1813531524. Its totient is φ = 604510506.

The previous prime is 1209020983. The next prime is 1209021017. The reversal of 1209021014 is 4101209021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209021017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302255252 + ... + 302255255.

It is an arithmetic number, because the mean of its divisors is an integer number (453382881).

Almost surely, 2^1209021014 is an apocalyptic number.

1209021014 is a deficient number, since it is larger than the sum of its proper divisors (604510510).

1209021014 is an equidigital number, since it uses as much as digits as its factorization.

1209021014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604510509.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1209021014 is about 34770.9794800204. The cubic root of 1209021014 is about 1065.3147736414.

The spelling of 1209021014 in words is "one billion, two hundred nine million, twenty-one thousand, fourteen".