12100121202220 has 24 divisors (see below), whose sum is σ = 25661841207408. Its totient is φ = 4792127208000.

The previous prime is 12100121202203. The next prime is 12100121202263. The reversal of 12100121202220 is 2220212100121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12100121202194 and 12100121202203.

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 7 ways as a sum of consecutive naturals, for example, 2995077486 + ... + 2995081525.

It is an arithmetic number, because the mean of its divisors is an integer number (1069243383642).

Almost surely, 2^{12100121202220} is an apocalyptic number.

12100121202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100121202220 is an abundant number, since it is smaller than the sum of its proper divisors (13561720005188).

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

12100121202220 is a wasteful number, since it uses less digits than its factorization.

12100121202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5990159121 (or 5990159119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12100121202220 its reverse (2220212100121), we get a palindrome (14320333302341).

The spelling of 12100121202220 in words is "twelve trillion, one hundred billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty".