1209011002 has 16 divisors (see below), whose sum is σ = 1917538560. Its totient is φ = 570117312.

The previous prime is 1209010991. The next prime is 1209011009. The reversal of 1209011002 is 2001109021.

It is not an unprimeable number, because it can be changed into a prime (1209011009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62863 + ... + 79810.

It is an arithmetic number, because the mean of its divisors is an integer number (119846160).

Almost surely, 2^1209011002 is an apocalyptic number.

1209011002 is a deficient number, since it is larger than the sum of its proper divisors (708527558).

1209011002 is a wasteful number, since it uses less digits than its factorization.

1209011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142917.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1209011002 is about 34770.8355090872. The cubic root of 1209011002 is about 1065.3118329810.

The spelling of 1209011002 in words is "one billion, two hundred nine million, eleven thousand, two".