1200221212202 has 24 divisors (see below), whose sum is σ = 1857687584256. Its totient is φ = 581538927816.

The previous prime is 1200221212181. The next prime is 1200221212247. The reversal of 1200221212202 is 2022121220021.

It is a happy number.

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 in 11 ways as a sum of consecutive naturals, for example, 808148 + ... + 1747439.

It is an arithmetic number, because the mean of its divisors is an integer number (77403649344).

Almost surely, 2^{1200221212202} is an apocalyptic number.

1200221212202 is a deficient number, since it is larger than the sum of its proper divisors (657466372054).

1200221212202 is a wasteful number, since it uses less digits than its factorization.

1200221212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555802 (or 2555759 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1200221212202 its reverse (2022121220021), we get a palindrome (3222342432223).

The spelling of 1200221212202 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".