121112211101012 has 6 divisors (see below), whose sum is σ = 211946369426778. Its totient is φ = 60556105550504.

The previous prime is 121112211100891. The next prime is 121112211101029. The reversal of 121112211101012 is 210101112211121.

121112211101012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 117541071156496 + 3571139944516 = 10841636^2 + 1889746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15139026387623 + ... + 15139026387630.

It is an arithmetic number, because the mean of its divisors is an integer number (35324394904463).

Almost surely, 2^{121112211101012} is an apocalyptic number.

It is an amenable number.

121112211101012 is a deficient number, since it is larger than the sum of its proper divisors (90834158325766).

121112211101012 is a wasteful number, since it uses less digits than its factorization.

121112211101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30278052775257 (or 30278052775255 counting only the distinct ones).

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

Adding to 121112211101012 its reverse (210101112211121), we get a palindrome (331213323312133).

The spelling of 121112211101012 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred eleven million, one hundred one thousand, twelve".