121210222222112 has 24 divisors (see below), whose sum is σ = 240744418148556. Its totient is φ = 60068782692352.

The previous prime is 121210222222069. The next prime is 121210222222123. The reversal of 121210222222112 is 211222222012121.

It can be written as a sum of positive squares in 2 ways, for example, as 113446442463376 + 7763779758736 = 10651124^2 + 2786356^2 .

It is a super-2 number, since 2×121210222222112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16760259413 + ... + 16760266644.

Almost surely, 2^{121210222222112} is an apocalyptic number.

It is an amenable number.

121210222222112 is a deficient number, since it is larger than the sum of its proper divisors (119534195926444).

121210222222112 is a wasteful number, since it uses less digits than its factorization.

121210222222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33520526180 (or 33520526172 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121210222222112 its reverse (211222222012121), we get a palindrome (332432444234233).

The spelling of 121210222222112 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".