222102541 has 2 divisors, whose sum is σ = 222102542. Its totient is φ = 222102540.

The previous prime is 222102539. The next prime is 222102557. The reversal of 222102541 is 145201222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152028900 + 70073641 = 12330^2 + 8371^2 .

It is a cyclic number.

It is not a de Polignac number, because 222102541 - 2¹ = 222102539 is a prime.

Together with 222102539, 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 (222102511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111051270 + 111051271.

It is an arithmetic number, because the mean of its divisors is an integer number (111051271).

Almost surely, 2^222102541 is an apocalyptic number.

It is an amenable number.

222102541 is a deficient number, since it is larger than the sum of its proper divisors (1).

222102541 is an equidigital number, since it uses as much as digits as its factorization.

222102541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 222102541 is about 14903.1050791437. The cubic root of 222102541 is about 605.5981071440.

Adding to 222102541 its reverse (145201222), we get a palindrome (367303763).

The spelling of 222102541 in words is "two hundred twenty-two million, one hundred two thousand, five hundred forty-one".