102120112211 has 6 divisors (see below), whose sum is σ = 110579766660. Its totient is φ = 94264718808.

The previous prime is 102120112201. The next prime is 102120112219. The reversal of 102120112211 is 112211021201.

It is not a de Polignac number, because 102120112211 - 2¹⁸ = 102119850067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102120112219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302130341 + ... + 302130678.

It is an arithmetic number, because the mean of its divisors is an integer number (18429961110).

Almost surely, 2^102120112211 is an apocalyptic number.

102120112211 is a deficient number, since it is larger than the sum of its proper divisors (8459654449).

102120112211 is an equidigital number, since it uses as much as digits as its factorization.

102120112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604261045 (or 604261032 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102120112211 its reverse (112211021201), we get a palindrome (214331133412).

The spelling of 102120112211 in words is "one hundred two billion, one hundred twenty million, one hundred twelve thousand, two hundred eleven".