102100011021212 has 24 divisors (see below), whose sum is σ = 178845151018800. Its totient is φ = 51001399927296.

The previous prime is 102100011021161. The next prime is 102100011021221. The reversal of 102100011021212 is 212120110001201.

It is a super-2 number, since 2×102100011021212² (a number of 29 digits) contains 22 as substring.

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, 120853964 + ... + 121695852.

It is an arithmetic number, because the mean of its divisors is an integer number (7451881292450).

Almost surely, 2^{102100011021212} is an apocalyptic number.

It is an amenable number.

102100011021212 is a deficient number, since it is larger than the sum of its proper divisors (76745139997588).

102100011021212 is a wasteful number, since it uses less digits than its factorization.

102100011021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870725 (or 870723 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102100011021212 its reverse (212120110001201), we get a palindrome (314220121022413).

The spelling of 102100011021212 in words is "one hundred two trillion, one hundred billion, eleven million, twenty-one thousand, two hundred twelve".