1200221121002 has 8 divisors (see below), whose sum is σ = 1829845315812. Its totient is φ = 590272682400.

The previous prime is 1200221120983. The next prime is 1200221121017. The reversal of 1200221121002 is 2001211220021.

It can be written as a sum of positive squares in 2 ways, for example, as 1134930139561 + 65290981441 = 1065331^2 + 255521^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4918938899 + ... + 4918939142.

Almost surely, 2^{1200221121002} is an apocalyptic number.

1200221121002 is a deficient number, since it is larger than the sum of its proper divisors (629624194810).

1200221121002 is an equidigital number, since it uses as much as digits as its factorization.

1200221121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837878104.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200221121002 its reverse (2001211220021), we get a palindrome (3201432341023).

The spelling of 1200221121002 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, two".