12122020210100 has 72 divisors (see below), whose sum is σ = 27284801811960. Its totient is φ = 4669056161280.

The previous prime is 12122020210099. The next prime is 12122020210123. The reversal of 12122020210100 is 101202022121.

It can be written as a sum of positive squares in 12 ways, for example, as 3034375866916 + 9087644343184 = 1741946^2 + 3014572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4521527 + ... + 6684926.

Almost surely, 2^{12122020210100} is an apocalyptic number.

12122020210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122020210100 is an abundant number, since it is smaller than the sum of its proper divisors (15162781601860).

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

12122020210100 is a wasteful number, since it uses less digits than its factorization.

12122020210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11206869 (or 11206862 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12122020210100 its reverse (101202022121), we get a palindrome (12223222232221).

The spelling of 12122020210100 in words is "twelve trillion, one hundred twenty-two billion, twenty million, two hundred ten thousand, one hundred".