12122020220100 has 144 divisors (see below), whose sum is σ = 40472640918528. Its totient is φ = 2743846968960.

The previous prime is 12122020220083. The next prime is 12122020220113. The reversal of 12122020220100 is 102202022121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12122020220100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27805014 + ... + 28237613.

Almost surely, 2^{12122020220100} is an apocalyptic number.

12122020220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122020220100 is an abundant number, since it is smaller than the sum of its proper divisors (28350620698428).

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

12122020220100 is a wasteful number, since it uses less digits than its factorization.

12122020220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56042754 (or 56042747 counting only the distinct ones).

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

Adding to 12122020220100 its reverse (102202022121), we get a palindrome (12224222242221).

The spelling of 12122020220100 in words is "twelve trillion, one hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred".