102122012011 has 4 divisors (see below), whose sum is σ = 102406474800. Its totient is φ = 101837549224.

The previous prime is 102122011963. The next prime is 102122012051. The reversal of 102122012011 is 110210221201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102122012011 - 2²⁷ = 101987794283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102122011982 and 102122012000.

It is not an unprimeable number, because it can be changed into a prime (102122012051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142230856 + ... + 142231573.

It is an arithmetic number, because the mean of its divisors is an integer number (25601618700).

Almost surely, 2^102122012011 is an apocalyptic number.

102122012011 is a deficient number, since it is larger than the sum of its proper divisors (284462789).

102122012011 is an equidigital number, since it uses as much as digits as its factorization.

102122012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284462788.

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

Adding to 102122012011 its reverse (110210221201), we get a palindrome (212332233212).

The spelling of 102122012011 in words is "one hundred two billion, one hundred twenty-two million, twelve thousand, eleven".