12020122100 has 36 divisors (see below), whose sum is σ = 29809904544. Its totient is φ = 4121184480.

The previous prime is 12020122091. The next prime is 12020122141. The reversal of 12020122100 is 122102021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8585102 + ... + 8586501.

It is an arithmetic number, because the mean of its divisors is an integer number (828052904).

Almost surely, 2^12020122100 is an apocalyptic number.

12020122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020122100 is an abundant number, since it is smaller than the sum of its proper divisors (17789782444).

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

12020122100 is a wasteful number, since it uses less digits than its factorization.

12020122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17171624 (or 17171617 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12020122100 its reverse (122102021), we get a palindrome (12142224121).

The spelling of 12020122100 in words is "twelve billion, twenty million, one hundred twenty-two thousand, one hundred".