102121200220011 has 48 divisors (see below), whose sum is σ = 158777146207008. Its totient is φ = 58213271424000.

The previous prime is 102121200219979. The next prime is 102121200220033. The reversal of 102121200220011 is 110022002121201.

It is not a de Polignac number, because 102121200220011 - 2⁵ = 102121200219979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121200200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99598861 + ... + 100618961.

It is an arithmetic number, because the mean of its divisors is an integer number (3307857212646).

Almost surely, 2^{102121200220011} is an apocalyptic number.

102121200220011 is a deficient number, since it is larger than the sum of its proper divisors (56655945986997).

102121200220011 is a wasteful number, since it uses less digits than its factorization.

102121200220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021772 (or 1021765 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102121200220011 its reverse (110022002121201), we get a palindrome (212143202341212).

The spelling of 102121200220011 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred million, two hundred twenty thousand, eleven".