10121102120 has 32 divisors (see below), whose sum is σ = 22829877000. Its totient is φ = 4038236928.

The previous prime is 10121102041. The next prime is 10121102129. The reversal of 10121102120 is 2120112101.

It can be written as a sum of positive squares in 4 ways, for example, as 7527644644 + 2593457476 = 86762^2 + 50926^2 .

It is not an unprimeable number, because it can be changed into a prime (10121102129) 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, 302795 + ... + 334554.

Almost surely, 2^10121102120 is an apocalyptic number.

10121102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121102120 is an abundant number, since it is smaller than the sum of its proper divisors (12708774880).

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

10121102120 is a wasteful number, since it uses less digits than its factorization.

10121102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637757 (or 637753 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10121102120 its reverse (2120112101), we get a palindrome (12241214221).

The spelling of 10121102120 in words is "ten billion, one hundred twenty-one million, one hundred two thousand, one hundred twenty".