121112222112102 has 32 divisors (see below), whose sum is σ = 260858473279488. Its totient is φ = 37265102040096.

The previous prime is 121112222112097. The next prime is 121112222112143. The reversal of 121112222112102 is 201211222211121.

It is a super-2 number, since 2×121112222112102² (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 15 ways as a sum of consecutive naturals, for example, 11096893 + ... + 19114535.

It is an arithmetic number, because the mean of its divisors is an integer number (8151827289984).

Almost surely, 2^{121112222112102} is an apocalyptic number.

121112222112102 is an abundant number, since it is smaller than the sum of its proper divisors (139746251167386).

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

121112222112102 is a wasteful number, since it uses less digits than its factorization.

121112222112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211324.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121112222112102 its reverse (201211222211121), we get a palindrome (322323444323223).

The spelling of 121112222112102 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred twelve thousand, one hundred two".