1200102212002 has 4 divisors (see below), whose sum is σ = 1800153318006. Its totient is φ = 600051106000.

The previous prime is 1200102211991. The next prime is 1200102212009. The reversal of 1200102212002 is 2002122010021.

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., 1185836059521 + 14266152481 = 1088961^2 + 119441^2 .

It is not an unprimeable number, because it can be changed into a prime (1200102212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300025552999 + ... + 300025553002.

Almost surely, 2^{1200102212002} is an apocalyptic number.

1200102212002 is a deficient number, since it is larger than the sum of its proper divisors (600051106004).

1200102212002 is an equidigital number, since it uses as much as digits as its factorization.

1200102212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600051106003.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1200102212002 its reverse (2002122010021), we get a palindrome (3202224222023).

The spelling of 1200102212002 in words is "one trillion, two hundred billion, one hundred two million, two hundred twelve thousand, two".