1201221010202 has 4 divisors (see below), whose sum is σ = 1801831515306. Its totient is φ = 600610505100.

The previous prime is 1201221010139. The next prime is 1201221010217. The reversal of 1201221010202 is 2020101221021.

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., 861575660521 + 339645349681 = 928211^2 + 582791^2 .

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, 300305252549 + ... + 300305252552.

Almost surely, 2^{1201221010202} is an apocalyptic number.

1201221010202 is a deficient number, since it is larger than the sum of its proper divisors (600610505104).

1201221010202 is an equidigital number, since it uses as much as digits as its factorization.

1201221010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600610505103.

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

Adding to 1201221010202 its reverse (2020101221021), we get a palindrome (3221322231223).

The spelling of 1201221010202 in words is "one trillion, two hundred one billion, two hundred twenty-one million, ten thousand, two hundred two".