10012120001236 has 24 divisors (see below), whose sum is σ = 18263751438240. Its totient is φ = 4796540767200.

The previous prime is 10012120001189. The next prime is 10012120001237. The reversal of 10012120001236 is 63210002121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012120001237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329417550 + ... + 329447941.

It is an arithmetic number, because the mean of its divisors is an integer number (760989643260).

Almost surely, 2^{10012120001236} is an apocalyptic number.

It is an amenable number.

10012120001236 is a deficient number, since it is larger than the sum of its proper divisors (8251631437004).

10012120001236 is a wasteful number, since it uses less digits than its factorization.

10012120001236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658865655 (or 658865653 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10012120001236 its reverse (63210002121001), we get a palindrome (73222122122237).

The spelling of 10012120001236 in words is "ten trillion, twelve billion, one hundred twenty million, one thousand, two hundred thirty-six".