12121101112010 has 32 divisors (see below), whose sum is σ = 23803152340032. Its totient is φ = 4407355089280.

The previous prime is 12121101112009. The next prime is 12121101112019. The reversal of 12121101112010 is 1021110112121.

It is not an unprimeable number, because it can be changed into a prime (12121101112019) 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, 2441459 + ... + 5495718.

It is an arithmetic number, because the mean of its divisors is an integer number (743848510626).

Almost surely, 2^{12121101112010} is an apocalyptic number.

12121101112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121101112010 is a deficient number, since it is larger than the sum of its proper divisors (11682051228022).

12121101112010 is a wasteful number, since it uses less digits than its factorization.

12121101112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951078.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 12121101112010 its reverse (1021110112121), we get a palindrome (13142211224131).

It can be divided in two parts, 1212110111 and 2010, that added together give a palindrome (1212112121).

The spelling of 12121101112010 in words is "twelve trillion, one hundred twenty-one billion, one hundred one million, one hundred twelve thousand, ten".