102121102100200 has 192 divisors, whose sum is σ = 256449892406400. Its totient is φ = 37702730419200.

The previous prime is 102121102100191. The next prime is 102121102100221. The reversal of 102121102100200 is 2001201121201.

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, 225620115 + ... + 226072285.

It is an arithmetic number, because the mean of its divisors is an integer number (1335676522950).

Almost surely, 2^{102121102100200} is an apocalyptic number.

102121102100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102121102100200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128224946203200).

102121102100200 is an abundant number, since it is smaller than the sum of its proper divisors (154328790306200).

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

102121102100200 is a wasteful number, since it uses less digits than its factorization.

102121102100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453932 (or 453923 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121102100200 its reverse (2001201121201), we get a palindrome (104122303221401).

The spelling of 102121102100200 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred two million, one hundred thousand, two hundred".