121112221010012 has 6 divisors (see below), whose sum is σ = 211946386767528. Its totient is φ = 60556110505004.

The previous prime is 121112221009999. The next prime is 121112221010021. The reversal of 121112221010012 is 210010122211121.

It is a super-2 number, since 2×121112221010012² (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 as a sum of consecutive naturals, namely, 15139027626248 + ... + 15139027626255.

It is an arithmetic number, because the mean of its divisors is an integer number (35324397794588).

Almost surely, 2^{121112221010012} is an apocalyptic number.

It is an amenable number.

121112221010012 is a deficient number, since it is larger than the sum of its proper divisors (90834165757516).

121112221010012 is a wasteful number, since it uses less digits than its factorization.

121112221010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30278055252507 (or 30278055252505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121112221010012 its reverse (210010122211121), we get a palindrome (331122343221133).

The spelling of 121112221010012 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-one million, ten thousand, twelve".