102530222 has 4 divisors (see below), whose sum is σ = 153795336. Its totient is φ = 51265110.

The previous prime is 102530201. The next prime is 102530243. The reversal of 102530222 is 222035201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222035201 = 11987 ⋅18523.

It is an interprime number because it is at equal distance from previous prime (102530201) and next prime (102530243).

It is a self number, because there is not a number n which added to its sum of digits gives 102530222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25632554 + ... + 25632557.

It is an arithmetic number, because the mean of its divisors is an integer number (38448834).

Almost surely, 2^102530222 is an apocalyptic number.

102530222 is a deficient number, since it is larger than the sum of its proper divisors (51265114).

102530222 is an equidigital number, since it uses as much as digits as its factorization.

102530222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51265113.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102530222 is about 10125.7208138483. The cubic root of 102530222 is about 468.0410725635.

Adding to 102530222 its reverse (222035201), we get a palindrome (324565423).

The spelling of 102530222 in words is "one hundred two million, five hundred thirty thousand, two hundred twenty-two".