12121102101010 has 32 divisors (see below), whose sum is σ = 25543005409152. Its totient is φ = 4054445301120.

The previous prime is 12121102100999. The next prime is 12121102101041. The reversal of 12121102101010 is 1010120112121.

It is a happy number.

It is a super-2 number, since 2×12121102101010² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2111687392 + ... + 2111693131.

It is an arithmetic number, because the mean of its divisors is an integer number (798218919036).

Almost surely, 2^{12121102101010} is an apocalyptic number.

12121102101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121102101010 is an abundant number, since it is smaller than the sum of its proper divisors (13421903308142).

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

12121102101010 is a wasteful number, since it uses less digits than its factorization.

12121102101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223380578.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12121102101010 its reverse (1010120112121), we get a palindrome (13131222213131).

The spelling of 12121102101010 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, one hundred one thousand, ten".