211102010102 has 4 divisors (see below), whose sum is σ = 316653015156. Its totient is φ = 105551005050.

The previous prime is 211102010081. The next prime is 211102010123. The reversal of 211102010102 is 201010201112.

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

It is an interprime number because it is at equal distance from previous prime (211102010081) and next prime (211102010123).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775502524 + ... + 52775502527.

It is an arithmetic number, because the mean of its divisors is an integer number (79163253789).

Almost surely, 2^211102010102 is an apocalyptic number.

211102010102 is a deficient number, since it is larger than the sum of its proper divisors (105551005054).

211102010102 is a wasteful number, since it uses less digits than its factorization.

211102010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105551005053.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211102010102 its reverse (201010201112), we get a palindrome (412112211214).

The spelling of 211102010102 in words is "two hundred eleven billion, one hundred two million, ten thousand, one hundred two".