102111211101212 has 24 divisors (see below), whose sum is σ = 183091265799120. Its totient is φ = 49799941159040.

The previous prime is 102111211101197. The next prime is 102111211101223. The reversal of 102111211101212 is 212101112111201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64248287 + ... + 65818422.

It is an arithmetic number, because the mean of its divisors is an integer number (7628802741630).

Almost surely, 2^{102111211101212} is an apocalyptic number.

It is an amenable number.

102111211101212 is a deficient number, since it is larger than the sum of its proper divisors (80980054697908).

102111211101212 is a wasteful number, since it uses less digits than its factorization.

102111211101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130071541 (or 130071539 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102111211101212 its reverse (212101112111201), we get a palindrome (314212323212413).

The spelling of 102111211101212 in words is "one hundred two trillion, one hundred eleven billion, two hundred eleven million, one hundred one thousand, two hundred twelve".