102042221312 has 36 divisors (see below), whose sum is σ = 205554573840. Its totient is φ = 50553013248.

The previous prime is 102042221293. The next prime is 102042221317. The reversal of 102042221312 is 213122240201.

It is a super-2 number, since 2×102042221312² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102042221317) 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, 1800548 + ... + 1856355.

Almost surely, 2^102042221312 is an apocalyptic number.

It is an amenable number.

102042221312 is an abundant number, since it is smaller than the sum of its proper divisors (103512352528).

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

102042221312 is an equidigital number, since it uses as much as digits as its factorization.

102042221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657028 (or 3657014 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102042221312 its reverse (213122240201), we get a palindrome (315164461513).

The spelling of 102042221312 in words is "one hundred two billion, forty-two million, two hundred twenty-one thousand, three hundred twelve".