221222222953 has 2 divisors, whose sum is σ = 221222222954. Its totient is φ = 221222222952.

The previous prime is 221222222951. The next prime is 221222223071. The reversal of 221222222953 is 359222222122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168491367529 + 52730855424 = 410477^2 + 229632^2 .

It is a cyclic number.

It is not a de Polignac number, because 221222222953 - 2¹ = 221222222951 is a prime.

It is a super-3 number, since 3×221222222953³ (a number of 35 digits) contains 333 as substring.

Together with 221222222951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (221222222951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611111476 + 110611111477.

It is an arithmetic number, because the mean of its divisors is an integer number (110611111477).

Almost surely, 2^221222222953 is an apocalyptic number.

It is an amenable number.

221222222953 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222222953 is an equidigital number, since it uses as much as digits as its factorization.

221222222953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The spelling of 221222222953 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, nine hundred fifty-three".