12122112101010 has 32 divisors (see below), whose sum is σ = 29093278807872. Its totient is φ = 3232539919680.

The previous prime is 12122112100999. The next prime is 12122112101059. The reversal of 12122112101010 is 1010121122121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2996632 + ... + 5764028.

It is an arithmetic number, because the mean of its divisors is an integer number (909164962746).

Almost surely, 2^{12122112101010} is an apocalyptic number.

12122112101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122112101010 is an abundant number, since it is smaller than the sum of its proper divisors (16971166706862).

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

12122112101010 is a wasteful number, since it uses less digits than its factorization.

12122112101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913418.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12122112101010 its reverse (1010121122121), we get a palindrome (13132233223131).

The spelling of 12122112101010 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, one hundred one thousand, ten".