1202012002 has 4 divisors (see below), whose sum is σ = 1803018006. Its totient is φ = 601006000.

The previous prime is 1202011973. The next prime is 1202012003. The reversal of 1202012002 is 2002102021.

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., 1200691801 + 1320201 = 34651^2 + 1149^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1202012002.

It is not an unprimeable number, because it can be changed into a prime (1202012003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300502999 + ... + 300503002.

Almost surely, 2^1202012002 is an apocalyptic number.

1202012002 is a deficient number, since it is larger than the sum of its proper divisors (601006004).

1202012002 is an equidigital number, since it uses as much as digits as its factorization.

1202012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601006003.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1202012002 is about 34670.0447360542. The cubic root of 1202012002 is about 1063.2521462195.

Adding to 1202012002 its reverse (2002102021), we get a palindrome (3204114023).

The spelling of 1202012002 in words is "one billion, two hundred two million, twelve thousand, two".