102111123213211 has 64 divisors (see below), whose sum is σ = 122174123212800. Its totient is φ = 85273137331200.

The previous prime is 102111123213109. The next prime is 102111123213263. The reversal of 102111123213211 is 112312321111201.

It is not a de Polignac number, because 102111123213211 - 2¹⁷ = 102111123082139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102111123213811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10889525355 + ... + 10889534731.

It is an arithmetic number, because the mean of its divisors is an integer number (1908970675200).

Almost surely, 2^{102111123213211} is an apocalyptic number.

102111123213211 is a deficient number, since it is larger than the sum of its proper divisors (20062999999589).

102111123213211 is an equidigital number, since it uses as much as digits as its factorization.

102111123213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13569 (or 13555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 102111123213211 its reverse (112312321111201), we get a palindrome (214423444324412).

The spelling of 102111123213211 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-three million, two hundred thirteen thousand, two hundred eleven".