10078121412 has 120 divisors (see below), whose sum is σ = 27640388160. Its totient is φ = 3197638080.

The previous prime is 10078121411. The next prime is 10078121413. The reversal of 10078121412 is 21412187001.

It is an interprime number because it is at equal distance from previous prime (10078121411) and next prime (10078121413).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10078121411) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 659563 + ... + 674669.

It is an arithmetic number, because the mean of its divisors is an integer number (230336568).

Almost surely, 2^10078121412 is an apocalyptic number.

10078121412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10078121412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13820194080).

10078121412 is an abundant number, since it is smaller than the sum of its proper divisors (17562266748).

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

10078121412 is a wasteful number, since it uses less digits than its factorization.

10078121412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15223 (or 15212 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The spelling of 10078121412 in words is "ten billion, seventy-eight million, one hundred twenty-one thousand, four hundred twelve".