1202110022221 has 2 divisors, whose sum is σ = 1202110022222. Its totient is φ = 1202110022220.

The previous prime is 1202110022209. The next prime is 1202110022227. The reversal of 1202110022221 is 1222200112021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 904800464100 + 297309558121 = 951210^2 + 545261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202110022221 - 2¹⁹ = 1202109497933 is a prime.

It is a super-2 number, since 2×1202110022221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202110022195 and 1202110022204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202110022227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601055011110 + 601055011111.

It is an arithmetic number, because the mean of its divisors is an integer number (601055011111).

Almost surely, 2^{1202110022221} is an apocalyptic number.

It is an amenable number.

1202110022221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202110022221 is an equidigital number, since it uses as much as digits as its factorization.

1202110022221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1202110022221 its reverse (1222200112021), we get a palindrome (2424310134242).

The spelling of 1202110022221 in words is "one trillion, two hundred two billion, one hundred ten million, twenty-two thousand, two hundred twenty-one".