22102210220212 has 12 divisors (see below), whose sum is σ = 38681524320516. Its totient is φ = 11050346128640.

The previous prime is 22102210220191. The next prime is 22102210220239. The reversal of 22102210220212 is 21202201220122.

It can be written as a sum of positive squares in 2 ways, for example, as 20849324003236 + 1252886216976 = 4566106^2 + 1119324^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22102210220212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189679843 + ... + 189796330.

It is an arithmetic number, because the mean of its divisors is an integer number (3223460360043).

Almost surely, 2^{22102210220212} is an apocalyptic number.

It is an amenable number.

22102210220212 is a deficient number, since it is larger than the sum of its proper divisors (16579314100304).

22102210220212 is a wasteful number, since it uses less digits than its factorization.

22102210220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379490738 (or 379490736 counting only the distinct ones).

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

Adding to 22102210220212 its reverse (21202201220122), we get a palindrome (43304411440334).

The spelling of 22102210220212 in words is "twenty-two trillion, one hundred two billion, two hundred ten million, two hundred twenty thousand, two hundred twelve".