23220100212 has 24 divisors (see below), whose sum is σ = 55644565536. Its totient is φ = 7530843168.

The previous prime is 23220100207. The next prime is 23220100217. The reversal of 23220100212 is 21200102232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23220100207) and next prime (23220100217).

It is a junction number, because it is equal to n+sod(n) for n = 23220100191 and 23220100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220100217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26148318 + ... + 26149205.

It is an arithmetic number, because the mean of its divisors is an integer number (2318523564).

Almost surely, 2^23220100212 is an apocalyptic number.

It is an amenable number.

23220100212 is an abundant number, since it is smaller than the sum of its proper divisors (32424465324).

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

23220100212 is a wasteful number, since it uses less digits than its factorization.

23220100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52297567 (or 52297565 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 23220100212 its reverse (21200102232), we get a palindrome (44420202444).

The spelling of 23220100212 in words is "twenty-three billion, two hundred twenty million, one hundred thousand, two hundred twelve".