10121121210 has 32 divisors (see below), whose sum is σ = 25569149760. Its totient is φ = 2556914688.

The previous prime is 10121121209. The next prime is 10121121217. The reversal of 10121121210 is 1212112101.

It is not an unprimeable number, because it can be changed into a prime (10121121217) 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, 8877607 + ... + 8878746.

It is an arithmetic number, because the mean of its divisors is an integer number (799035930).

Almost surely, 2^10121121210 is an apocalyptic number.

10121121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121121210 is an abundant number, since it is smaller than the sum of its proper divisors (15448028550).

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

10121121210 is a wasteful number, since it uses less digits than its factorization.

10121121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17756382.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121121210 its reverse (1212112101), we get a palindrome (11333233311).

The spelling of 10121121210 in words is "ten billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred ten".