1200120021202 has 8 divisors (see below), whose sum is σ = 1800217226700. Its totient is φ = 600047612304.

The previous prime is 1200120021187. The next prime is 1200120021209. The reversal of 1200120021202 is 2021200210021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1194498170761 + 5621850441 = 1092931^2 + 74979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1200120021209) 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 in 3 ways as a sum of consecutive naturals, for example, 6077677 + ... + 6272032.

Almost surely, 2^{1200120021202} is an apocalyptic number.

1200120021202 is a deficient number, since it is larger than the sum of its proper divisors (600097205498).

1200120021202 is a wasteful number, since it uses less digits than its factorization.

1200120021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398300.

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

Adding to 1200120021202 its reverse (2021200210021), we get a palindrome (3221320231223).

The spelling of 1200120021202 in words is "one trillion, two hundred billion, one hundred twenty million, twenty-one thousand, two hundred two".