1212201210202 has 4 divisors (see below), whose sum is σ = 1818301815306. Its totient is φ = 606100605100.

The previous prime is 1212201210179. The next prime is 1212201210277. The reversal of 1212201210202 is 2020121022121.

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., 1177682914521 + 34518295681 = 1085211^2 + 185791^2 .

It is an unprimeable number.

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, 303050302549 + ... + 303050302552.

Almost surely, 2^{1212201210202} is an apocalyptic number.

1212201210202 is a deficient number, since it is larger than the sum of its proper divisors (606100605104).

1212201210202 is an equidigital number, since it uses as much as digits as its factorization.

1212201210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606100605103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212201210202 its reverse (2020121022121), we get a palindrome (3232322232323).

The spelling of 1212201210202 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred ten thousand, two hundred two".