102221372 has 12 divisors (see below), whose sum is σ = 195149976. Its totient is φ = 46464240.

The previous prime is 102221321. The next prime is 102221377. The reversal of 102221372 is 273122201.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1161563 + ... + 1161650.

It is an arithmetic number, because the mean of its divisors is an integer number (16262498).

Almost surely, 2^102221372 is an apocalyptic number.

It is an amenable number.

102221372 is a deficient number, since it is larger than the sum of its proper divisors (92928604).

102221372 is a wasteful number, since it uses less digits than its factorization.

102221372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323228 (or 2323226 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 102221372 is about 10110.4585454865. The cubic root of 102221372 is about 467.5706425701.

Adding to 102221372 its reverse (273122201), we get a palindrome (375343573).

The spelling of 102221372 in words is "one hundred two million, two hundred twenty-one thousand, three hundred seventy-two".