102121220212102 has 32 divisors (see below), whose sum is σ = 189320318208000. Its totient is φ = 40230567584928.

The previous prime is 102121220212093. The next prime is 102121220212171. The reversal of 102121220212102 is 201212022121201.

It is a self number, because there is not a number n which added to its sum of digits gives 102121220212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173817602 + ... + 1173904597.

It is an arithmetic number, because the mean of its divisors is an integer number (5916259944000).

Almost surely, 2^{102121220212102} is an apocalyptic number.

102121220212102 is a deficient number, since it is larger than the sum of its proper divisors (87199097995898).

102121220212102 is a wasteful number, since it uses less digits than its factorization.

102121220212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347722460.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102121220212102 its reverse (201212022121201), we get a palindrome (303333242333303).

The spelling of 102121220212102 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, one hundred two".