102142224012 has 24 divisors (see below), whose sum is σ = 246019981312. Its totient is φ = 32949104400.

The previous prime is 102142224011. The next prime is 102142224073. The reversal of 102142224012 is 210422241201.

It is a super-2 number, since 2×102142224012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102142224012.

It is not an unprimeable number, because it can be changed into a prime (102142224011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137287564 + ... + 137288307.

Almost surely, 2^102142224012 is an apocalyptic number.

102142224012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102142224012 is an abundant number, since it is smaller than the sum of its proper divisors (143877757300).

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

102142224012 is a wasteful number, since it uses less digits than its factorization.

102142224012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274575909 (or 274575907 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102142224012 its reverse (210422241201), we get a palindrome (312564465213).

The spelling of 102142224012 in words is "one hundred two billion, one hundred forty-two million, two hundred twenty-four thousand, twelve".