1212102002 has 4 divisors (see below), whose sum is σ = 1818153006. Its totient is φ = 606051000.

The previous prime is 1212101963. The next prime is 1212102013. The reversal of 1212102002 is 2002012121.

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., 1137780361 + 74321641 = 33731^2 + 8621^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303025499 + ... + 303025502.

Almost surely, 2^1212102002 is an apocalyptic number.

1212102002 is a deficient number, since it is larger than the sum of its proper divisors (606051004).

1212102002 is an equidigital number, since it uses as much as digits as its factorization.

1212102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606051003.

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

The square root of 1212102002 is about 34815.2553056846. The cubic root of 1212102002 is about 1066.2189315983.

Adding to 1212102002 its reverse (2002012121), we get a palindrome (3214114123).

The spelling of 1212102002 in words is "one billion, two hundred twelve million, one hundred two thousand, two".