121122313112 has 16 divisors (see below), whose sum is σ = 230302990800. Its totient is φ = 59708182240.

The previous prime is 121122313111. The next prime is 121122313211. The reversal of 121122313112 is 211313221121.

It is a super-2 number, since 2×121122313112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122313111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106621187 + ... + 106622322.

It is an arithmetic number, because the mean of its divisors is an integer number (14393936925).

Almost surely, 2^121122313112 is an apocalyptic number.

It is an amenable number.

121122313112 is a deficient number, since it is larger than the sum of its proper divisors (109180677688).

121122313112 is a wasteful number, since it uses less digits than its factorization.

121122313112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213243586 (or 213243582 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 121122313112 its reverse (211313221121), we get a palindrome (332435534233).

The spelling of 121122313112 in words is "one hundred twenty-one billion, one hundred twenty-two million, three hundred thirteen thousand, one hundred twelve".