1202232101221 has 2 divisors, whose sum is σ = 1202232101222. Its totient is φ = 1202232101220.

The previous prime is 1202232101219. The next prime is 1202232101233. The reversal of 1202232101221 is 1221012322021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952917630625 + 249314470596 = 976175^2 + 499314^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202232101221 - 2¹ = 1202232101219 is a prime.

Together with 1202232101219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202232101201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601116050610 + 601116050611.

It is an arithmetic number, because the mean of its divisors is an integer number (601116050611).

Almost surely, 2^{1202232101221} is an apocalyptic number.

It is an amenable number.

1202232101221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202232101221 is an equidigital number, since it uses as much as digits as its factorization.

1202232101221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1202232101221 its reverse (1221012322021), we get a palindrome (2423244423242).

The spelling of 1202232101221 in words is "one trillion, two hundred two billion, two hundred thirty-two million, one hundred one thousand, two hundred twenty-one".