22220100100212 has 48 divisors (see below), whose sum is σ = 59290335656832. Its totient is φ = 6344664094080.

The previous prime is 22220100100201. The next prime is 22220100100213. The reversal of 22220100100212 is 21200100102222.

It is a junction number, because it is equal to n+sod(n) for n = 22220100100191 and 22220100100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220100100213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81862339 + ... + 82133322.

It is an arithmetic number, because the mean of its divisors is an integer number (1235215326184).

Almost surely, 2^{22220100100212} is an apocalyptic number.

It is an amenable number.

22220100100212 is an abundant number, since it is smaller than the sum of its proper divisors (37070235556620).

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

22220100100212 is a wasteful number, since it uses less digits than its factorization.

22220100100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163997288 (or 163997286 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22220100100212 its reverse (21200100102222), we get a palindrome (43420200202434).

The spelling of 22220100100212 in words is "twenty-two trillion, two hundred twenty billion, one hundred million, one hundred thousand, two hundred twelve".