222525101 has 2 divisors, whose sum is σ = 222525102. Its totient is φ = 222525100.

The previous prime is 222525071. The next prime is 222525109. The reversal of 222525101 is 101525222.

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., 218005225 + 4519876 = 14765^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 222525101 - 2¹⁰ = 222524077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222525109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111262550 + 111262551.

It is an arithmetic number, because the mean of its divisors is an integer number (111262551).

Almost surely, 2^222525101 is an apocalyptic number.

It is an amenable number.

222525101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222525101 is an equidigital number, since it uses as much as digits as its factorization.

222525101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 222525101 is about 14917.2752538793. The cubic root of 222525101 is about 605.9819229832.

The spelling of 222525101 in words is "two hundred twenty-two million, five hundred twenty-five thousand, one hundred one".