102100220102100 has 144 divisors (see below), whose sum is σ = 333378023065920. Its totient is φ = 23898066124800.

The previous prime is 102100220102011. The next prime is 102100220102147. The reversal of 102100220102100 is 1201022001201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 533343277 + ... + 533534676.

It is an arithmetic number, because the mean of its divisors is an integer number (2315125160180).

Almost surely, 2^{102100220102100} is an apocalyptic number.

102100220102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100220102100 is an abundant number, since it is smaller than the sum of its proper divisors (231277802963820).

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

102100220102100 is a wasteful number, since it uses less digits than its factorization.

102100220102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066878010 (or 1066878003 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102100220102100 its reverse (1201022001201), we get a palindrome (103301242103301).

The spelling of 102100220102100 in words is "one hundred two trillion, one hundred billion, two hundred twenty million, one hundred two thousand, one hundred".