10021112121108 has 48 divisors (see below), whose sum is σ = 25560237265920. Its totient is φ = 3030515896800.

The previous prime is 10021112121073. The next prime is 10021112121109. The reversal of 10021112121108 is 80112121112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021112121109) 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, 77244268 + ... + 77373891.

It is an arithmetic number, because the mean of its divisors is an integer number (532504943040).

Almost surely, 2^{10021112121108} is an apocalyptic number.

It is an amenable number.

10021112121108 is an abundant number, since it is smaller than the sum of its proper divisors (15539125144812).

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

10021112121108 is a wasteful number, since it uses less digits than its factorization.

10021112121108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154618668 (or 154618666 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 21.

Adding to 10021112121108 its reverse (80112121112001), we get a palindrome (90133233233109).

The spelling of 10021112121108 in words is "ten trillion, twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred eight".