22102220201212 has 24 divisors (see below), whose sum is σ = 38695819478400. Its totient is φ = 11046272702256.

The previous prime is 22102220201197. The next prime is 22102220201219. The reversal of 22102220201212 is 21210202220122.

It is a self number, because there is not a number n which added to its sum of digits gives 22102220201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102220201219) 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, 100364239 + ... + 100584217.

It is an arithmetic number, because the mean of its divisors is an integer number (1612325811600).

Almost surely, 2^{22102220201212} is an apocalyptic number.

It is an amenable number.

22102220201212 is a deficient number, since it is larger than the sum of its proper divisors (16593599277188).

22102220201212 is a wasteful number, since it uses less digits than its factorization.

22102220201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230865 (or 230863 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22102220201212 its reverse (21210202220122), we get a palindrome (43312422421334).

The spelling of 22102220201212 in words is "twenty-two trillion, one hundred two billion, two hundred twenty million, two hundred one thousand, two hundred twelve".