102122444 has 6 divisors (see below), whose sum is σ = 178714284. Its totient is φ = 51061220.

The previous prime is 102122443. The next prime is 102122459. The reversal of 102122444 is 444221201.

It is not an unprimeable number, because it can be changed into a prime (102122441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12765302 + ... + 12765309.

It is an arithmetic number, because the mean of its divisors is an integer number (29785714).

Almost surely, 2^102122444 is an apocalyptic number.

It is an amenable number.

102122444 is a deficient number, since it is larger than the sum of its proper divisors (76591840).

102122444 is a wasteful number, since it uses less digits than its factorization.

102122444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25530615 (or 25530613 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 102122444 is about 10105.5650015227. The cubic root of 102122444 is about 467.4197584073.

Adding to 102122444 its reverse (444221201), we get a palindrome (546343645).

The spelling of 102122444 in words is "one hundred two million, one hundred twenty-two thousand, four hundred forty-four".