121121110200212 has 6 divisors (see below), whose sum is σ = 211961942850378. Its totient is φ = 60560555100104.

The previous prime is 121121110200179. The next prime is 121121110200247. The reversal of 121121110200212 is 212002011121121.

It can be written as a sum of positive squares in only one way, i.e., 103988679930256 + 17132430269956 = 10197484^2 + 4139134^2 .

It is a super-2 number, since 2×121121110200212² (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, 15140138775023 + ... + 15140138775030.

It is an arithmetic number, because the mean of its divisors is an integer number (35326990475063).

Almost surely, 2^{121121110200212} is an apocalyptic number.

It is an amenable number.

121121110200212 is a deficient number, since it is larger than the sum of its proper divisors (90840832650166).

121121110200212 is a wasteful number, since it uses less digits than its factorization.

121121110200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30280277550057 (or 30280277550055 counting only the distinct ones).

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

Adding to 121121110200212 its reverse (212002011121121), we get a palindrome (333123121321333).

The spelling of 121121110200212 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred ten million, two hundred thousand, two hundred twelve".