102102121010 has 16 divisors (see below), whose sum is σ = 185501425536. Its totient is φ = 40459157808.

The previous prime is 102102120977. The next prime is 102102121013. The reversal of 102102121010 is 10121201201.

It is a super-2 number, since 2×102102121010² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102102120982 and 102102121000.

It is not an unprimeable number, because it can be changed into a prime (102102121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47710202 + ... + 47712341.

It is an arithmetic number, because the mean of its divisors is an integer number (11593839096).

Almost surely, 2^102102121010 is an apocalyptic number.

102102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102121010 is a deficient number, since it is larger than the sum of its proper divisors (83399304526).

102102121010 is a wasteful number, since it uses less digits than its factorization.

102102121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95422657.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102102121010 its reverse (10121201201), we get a palindrome (112223322211).

The spelling of 102102121010 in words is "one hundred two billion, one hundred two million, one hundred twenty-one thousand, ten".