12101220204 has 24 divisors (see below), whose sum is σ = 28285132848. Its totient is φ = 4026746880.

The previous prime is 12101220149. The next prime is 12101220223. The reversal of 12101220204 is 40202210121.

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, 866937 + ... + 880784.

It is an arithmetic number, because the mean of its divisors is an integer number (1178547202).

Almost surely, 2^12101220204 is an apocalyptic number.

It is an amenable number.

12101220204 is an abundant number, since it is smaller than the sum of its proper divisors (16183912644).

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

12101220204 is a wasteful number, since it uses less digits than its factorization.

12101220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748305 (or 1748303 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12101220204 its reverse (40202210121), we get a palindrome (52303430325).

The spelling of 12101220204 in words is "twelve billion, one hundred one million, two hundred twenty thousand, two hundred four".