10121402112 has 72 divisors (see below), whose sum is σ = 27306850704. Its totient is φ = 3327565824.

The previous prime is 10121402111. The next prime is 10121402117. The reversal of 10121402112 is 21120412101.

It is a junction number, because it is equal to n+sod(n) for n = 10121402091 and 10121402100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121402111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34203 + ... + 146330.

Almost surely, 2^10121402112 is an apocalyptic number.

10121402112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10121402112 is an abundant number, since it is smaller than the sum of its proper divisors (17185448592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121402112 is an equidigital number, since it uses as much as digits as its factorization.

10121402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180625 (or 180611 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10121402112 its reverse (21120412101), we get a palindrome (31241814213).

The spelling of 10121402112 in words is "ten billion, one hundred twenty-one million, four hundred two thousand, one hundred twelve".