121121010112 has 14 divisors (see below), whose sum is σ = 240349504568. Its totient is φ = 60560505024.

The previous prime is 121121010103. The next prime is 121121010113. The reversal of 121121010112 is 211010121121.

It is a happy number.

It is a super-3 number, since 3×121121010112³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121121010092 and 121121010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121010113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 946257828 + ... + 946257955.

Almost surely, 2^121121010112 is an apocalyptic number.

It is an amenable number.

121121010112 is a deficient number, since it is larger than the sum of its proper divisors (119228494456).

121121010112 is an equidigital number, since it uses as much as digits as its factorization.

121121010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892515795 (or 1892515785 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121121010112 its reverse (211010121121), we get a palindrome (332131131233).

The spelling of 121121010112 in words is "one hundred twenty-one billion, one hundred twenty-one million, ten thousand, one hundred twelve".