111212030202102 has 48 divisors (see below), whose sum is σ = 241021068221232. Its totient is φ = 37061190342720.

The previous prime is 111212030202079. The next prime is 111212030202157. The reversal of 111212030202102 is 201202030212111.

111212030202102 is a `hidden beast` number, since 11 + 121 + 20 + 302 + 0 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1335565873 + ... + 1335649139.

It is an arithmetic number, because the mean of its divisors is an integer number (5021272254609).

Almost surely, 2^{111212030202102} is an apocalyptic number.

111212030202102 is an abundant number, since it is smaller than the sum of its proper divisors (129809038019130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111212030202102 is a wasteful number, since it uses less digits than its factorization.

111212030202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101373 (or 101370 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111212030202102 its reverse (201202030212111), we get a palindrome (312414060414213).

The spelling of 111212030202102 in words is "one hundred eleven trillion, two hundred twelve billion, thirty million, two hundred two thousand, one hundred two".