10120012221012 has 48 divisors (see below), whose sum is σ = 23634028209792. Its totient is φ = 3370386360960.

The previous prime is 10120012220951. The next prime is 10120012221013. The reversal of 10120012221012 is 21012221002101.

It is a junction number, because it is equal to n+sod(n) for n = 10120012220982 and 10120012221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120012221013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64492593 + ... + 64649319.

It is an arithmetic number, because the mean of its divisors is an integer number (492375587704).

Almost surely, 2^{10120012221012} is an apocalyptic number.

10120012221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120012221012 is an abundant number, since it is smaller than the sum of its proper divisors (13514015988780).

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

10120012221012 is a wasteful number, since it uses less digits than its factorization.

10120012221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161408 (or 161406 counting only the distinct ones).

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

Adding to 10120012221012 its reverse (21012221002101), we get a palindrome (31132233223113).

The spelling of 10120012221012 in words is "ten trillion, one hundred twenty billion, twelve million, two hundred twenty-one thousand, twelve".