102222342 has 24 divisors (see below), whose sum is σ = 227469216. Its totient is φ = 33152976.

The previous prime is 102222331. The next prime is 102222347. The reversal of 102222342 is 243222201.

102222342 is a `hidden beast` number, since 102 + 222 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76078 + ... + 77409.

It is an arithmetic number, because the mean of its divisors is an integer number (9477884).

Almost surely, 2^102222342 is an apocalyptic number.

102222342 is an abundant number, since it is smaller than the sum of its proper divisors (125246874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102222342 is a wasteful number, since it uses less digits than its factorization.

102222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153532 (or 153529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 102222342 is about 10110.5065155016. The cubic root of 102222342 is about 467.5721215240.

Adding to 102222342 its reverse (243222201), we get a palindrome (345444543).

The spelling of 102222342 in words is "one hundred two million, two hundred twenty-two thousand, three hundred forty-two".