102111012201 has 16 divisors (see below), whose sum is σ = 149061313728. Its totient is φ = 61662043200.

The previous prime is 102111012151. The next prime is 102111012203. The reversal of 102111012201 is 102210111201.

It is not a de Polignac number, because 102111012201 - 2²¹ = 102108915049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102111012203) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5576190 + ... + 5594471.

It is an arithmetic number, because the mean of its divisors is an integer number (9316332108).

Almost surely, 2^102111012201 is an apocalyptic number.

102111012201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102111012201 is a deficient number, since it is larger than the sum of its proper divisors (46950301527).

102111012201 is a wasteful number, since it uses less digits than its factorization.

102111012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11170952.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102111012201 its reverse (102210111201), we get a palindrome (204321123402).

The spelling of 102111012201 in words is "one hundred two billion, one hundred eleven million, twelve thousand, two hundred one".