102220371 has 24 divisors (see below), whose sum is σ = 170552304. Its totient is φ = 58306560.

The previous prime is 102220351. The next prime is 102220379. The reversal of 102220371 is 173022201.

It is a de Polignac number, because none of the positive numbers 2^k-102220371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102220379) 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 in 23 ways as a sum of consecutive naturals, for example, 28686 + ... + 32051.

It is an arithmetic number, because the mean of its divisors is an integer number (7106346).

Almost surely, 2^102220371 is an apocalyptic number.

102220371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102220371 is a deficient number, since it is larger than the sum of its proper divisors (68331933).

102220371 is a wasteful number, since it uses less digits than its factorization.

102220371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60771 (or 60768 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 102220371 is about 10110.4090421704. The cubic root of 102220371 is about 467.5691163409.

Adding to 102220371 its reverse (173022201), we get a palindrome (275242572).

The spelling of 102220371 in words is "one hundred two million, two hundred twenty thousand, three hundred seventy-one".