2212123100 has 36 divisors (see below), whose sum is σ = 5236701288. Its totient is φ = 804408000.

The previous prime is 2212123099. The next prime is 2212123153. The reversal of 2212123100 is 13212122.

It is a happy number.

2212123100 is nontrivially palindromic in base 9.

2212123100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2212123100² = 9786977219107220000, which contains 22 as substring.

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, 1004411 + ... + 1006610.

Almost surely, 2^2212123100 is an apocalyptic number.

2212123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212123100 is an abundant number, since it is smaller than the sum of its proper divisors (3024578188).

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

2212123100 is a wasteful number, since it uses less digits than its factorization.

2212123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011046 (or 2011039 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2212123100 is about 47033.2127331315. The cubic root of 2212123100 is about 1302.9760418194.

Adding to 2212123100 its reverse (13212122), we get a palindrome (2225335222).

The spelling of 2212123100 in words is "two billion, two hundred twelve million, one hundred twenty-three thousand, one hundred".