102122222 has 4 divisors (see below), whose sum is σ = 153183336. Its totient is φ = 51061110.

The previous prime is 102122221. The next prime is 102122227. The reversal of 102122222 is 222221201.

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

It is a junction number, because it is equal to n+sod(n) for n = 102122197 and 102122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530554 + ... + 25530557.

It is an arithmetic number, because the mean of its divisors is an integer number (38295834).

Almost surely, 2^102122222 is an apocalyptic number.

102122222 is a deficient number, since it is larger than the sum of its proper divisors (51061114).

102122222 is an equidigital number, since it uses as much as digits as its factorization.

102122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51061113.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102122222 is about 10105.5540174698. The cubic root of 102122222 is about 467.4194197052.

Adding to 102122222 its reverse (222221201), we get a palindrome (324343423).

The spelling of 102122222 in words is "one hundred two million, one hundred twenty-two thousand, two hundred twenty-two".