10121321534412 has 48 divisors (see below), whose sum is σ = 25763551632000. Its totient is φ = 3067044783360.

The previous prime is 10121321534329. The next prime is 10121321534537. The reversal of 10121321534412 is 21443512312101.

It is a super-2 number, since 2×10121321534412² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10121321534412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31845139 + ... + 32161397.

It is an arithmetic number, because the mean of its divisors is an integer number (536740659000).

Almost surely, 2^{10121321534412} is an apocalyptic number.

10121321534412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10121321534412 is an abundant number, since it is smaller than the sum of its proper divisors (15642230097588).

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

10121321534412 is a wasteful number, since it uses less digits than its factorization.

10121321534412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558726 (or 558724 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 10121321534412 its reverse (21443512312101), we get a palindrome (31564833846513).

The spelling of 10121321534412 in words is "ten trillion, one hundred twenty-one billion, three hundred twenty-one million, five hundred thirty-four thousand, four hundred twelve".