222122122202212 has 6 divisors (see below), whose sum is σ = 388713713853878. Its totient is φ = 111061061101104.

The previous prime is 222122122202153. The next prime is 222122122202221. The reversal of 222122122202212 is 212202221221222.

It can be written as a sum of positive squares in only one way, i.e., 221899634519616 + 222487682596 = 14896296^2 + 471686^2 .

It is a super-2 number, since 2×222122122202212² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765265275273 + ... + 27765265275280.

Almost surely, 2^{222122122202212} is an apocalyptic number.

It is an amenable number.

222122122202212 is a deficient number, since it is larger than the sum of its proper divisors (166591591651666).

222122122202212 is a wasteful number, since it uses less digits than its factorization.

222122122202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55530530550557 (or 55530530550555 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222122122202212 its reverse (212202221221222), we get a palindrome (434324343423434).

The spelling of 222122122202212 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, two hundred twelve".