102102201211011 has 4 divisors (see below), whose sum is σ = 136136268281352. Its totient is φ = 68068134140672.

The previous prime is 102102201210991. The next prime is 102102201211039. The reversal of 102102201211011 is 110112102201201.

It is a happy number.

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 102102201211011 - 2⁴³ = 93306108188803 is a prime.

It is a super-2 number, since 2×102102201211011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102102201211051) 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, 17017033535166 + ... + 17017033535171.

It is an arithmetic number, because the mean of its divisors is an integer number (34034067070338).

Almost surely, 2^{102102201211011} is an apocalyptic number.

102102201211011 is a deficient number, since it is larger than the sum of its proper divisors (34034067070341).

102102201211011 is an equidigital number, since it uses as much as digits as its factorization.

102102201211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034067070340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102102201211011 its reverse (110112102201201), we get a palindrome (212214303412212).

The spelling of 102102201211011 in words is "one hundred two trillion, one hundred two billion, two hundred one million, two hundred eleven thousand, eleven".