102121100106 has 16 divisors (see below), whose sum is σ = 204288140448. Its totient is φ = 34032710000.

The previous prime is 102121100093. The next prime is 102121100111. The reversal of 102121100106 is 601001121201.

It is a happy number.

It is a super-2 number, since 2×102121100106² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 1885245 + ... + 1938656.

It is an arithmetic number, because the mean of its divisors is an integer number (12768008778).

Almost surely, 2^102121100106 is an apocalyptic number.

102121100106 is an abundant number, since it is smaller than the sum of its proper divisors (102167040342).

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

102121100106 is a wasteful number, since it uses less digits than its factorization.

102121100106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828357.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102121100106 its reverse (601001121201), we get a palindrome (703122221307).

The spelling of 102121100106 in words is "one hundred two billion, one hundred twenty-one million, one hundred thousand, one hundred six".