12020202221100 has 144 divisors (see below), whose sum is σ = 36251522754048. Its totient is φ = 3072206396160.

The previous prime is 12020202221077. The next prime is 12020202221107. The reversal of 12020202221100 is 112220202021.

It is a super-2 number, since 2×12020202221100² (a number of 27 digits) contains 22 as substring.

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 12020202221100.

It is not an unprimeable number, because it can be changed into a prime (12020202221107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7337652 + ... + 8825051.

It is an arithmetic number, because the mean of its divisors is an integer number (251746685792).

Almost surely, 2^{12020202221100} is an apocalyptic number.

12020202221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020202221100 is an abundant number, since it is smaller than the sum of its proper divisors (24231320532948).

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

12020202221100 is a wasteful number, since it uses less digits than its factorization.

12020202221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16162824 (or 16162817 counting only the distinct ones).

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

Adding to 12020202221100 its reverse (112220202021), we get a palindrome (12132422423121).

The spelling of 12020202221100 in words is "twelve trillion, twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred".