125221022 has 4 divisors (see below), whose sum is σ = 187831536. Its totient is φ = 62610510.

The previous prime is 125221009. The next prime is 125221037. The reversal of 125221022 is 220122521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31305254 + ... + 31305257.

It is an arithmetic number, because the mean of its divisors is an integer number (46957884).

Almost surely, 2^125221022 is an apocalyptic number.

125221022 is a deficient number, since it is larger than the sum of its proper divisors (62610514).

125221022 is an equidigital number, since it uses as much as digits as its factorization.

125221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62610513.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 125221022 is about 11190.2199263464. The cubic root of 125221022 is about 500.2945224790.

Adding to 125221022 its reverse (220122521), we get a palindrome (345343543).

The spelling of 125221022 in words is "one hundred twenty-five million, two hundred twenty-one thousand, twenty-two".