111110102102121 has 8 divisors (see below), whose sum is σ = 148146864222144. Its totient is φ = 74073370691760.

The previous prime is 111110102102063. The next prime is 111110102102137. The reversal of 111110102102121 is 121201201011111.

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

It is not a de Polignac number, because 111110102102121 - 2⁷ = 111110102101993 is a prime.

It is a super-2 number, since 2×111110102102121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111110102102121.

It is not an unprimeable number, because it can be changed into a prime (111110102102171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2812195 + ... + 15169991.

It is an arithmetic number, because the mean of its divisors is an integer number (18518358027768).

Almost surely, 2^{111110102102121} is an apocalyptic number.

It is an amenable number.

111110102102121 is a deficient number, since it is larger than the sum of its proper divisors (37036762120023).

111110102102121 is a wasteful number, since it uses less digits than its factorization.

111110102102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15354831.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111110102102121 its reverse (121201201011111), we get a palindrome (232311303113232).

The spelling of 111110102102121 in words is "one hundred eleven trillion, one hundred ten billion, one hundred two million, one hundred two thousand, one hundred twenty-one".