102111211102 has 8 divisors (see below), whose sum is σ = 159826243536. Its totient is φ = 48835796592.

The previous prime is 102111211099. The next prime is 102111211121. The reversal of 102111211102 is 201112111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×102111211102³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109904423 + ... + 1109904514.

It is an arithmetic number, because the mean of its divisors is an integer number (19978280442).

Almost surely, 2^102111211102 is an apocalyptic number.

102111211102 is a deficient number, since it is larger than the sum of its proper divisors (57715032434).

102111211102 is a wasteful number, since it uses less digits than its factorization.

102111211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219808962.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102111211102 its reverse (201112111201), we get a palindrome (303223322303).

Subtracting 102111211102 from its reverse (201112111201), we obtain a palindrome (99000900099).

The spelling of 102111211102 in words is "one hundred two billion, one hundred eleven million, two hundred eleven thousand, one hundred two".