12022100212 has 6 divisors (see below), whose sum is σ = 21038675378. Its totient is φ = 6011050104.

The previous prime is 12022100179. The next prime is 12022100219. The reversal of 12022100212 is 21200122021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8236651536 + 3785448676 = 90756^2 + 61526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12022100192 and 12022100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022100219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502762523 + ... + 1502762530.

Almost surely, 2^12022100212 is an apocalyptic number.

It is an amenable number.

12022100212 is a deficient number, since it is larger than the sum of its proper divisors (9016575166).

12022100212 is a wasteful number, since it uses less digits than its factorization.

12022100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005525057 (or 3005525055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12022100212 its reverse (21200122021), we get a palindrome (33222222233).

The spelling of 12022100212 in words is "twelve billion, twenty-two million, one hundred thousand, two hundred twelve".