211022211110212 has 6 divisors (see below), whose sum is σ = 369288869442878. Its totient is φ = 105511105555104.

The previous prime is 211022211110189. The next prime is 211022211110267. The reversal of 211022211110212 is 212011112220112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 142956840079936 + 68065371030276 = 11956456^2 + 8250174^2 .

It is a super-2 number, since 2×211022211110212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211022211110212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26377776388773 + ... + 26377776388780.

Almost surely, 2^{211022211110212} is an apocalyptic number.

It is an amenable number.

211022211110212 is a deficient number, since it is larger than the sum of its proper divisors (158266658332666).

211022211110212 is a wasteful number, since it uses less digits than its factorization.

211022211110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52755552777557 (or 52755552777555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211022211110212 its reverse (212011112220112), we get a palindrome (423033323330324).

The spelling of 211022211110212 in words is "two hundred eleven trillion, twenty-two billion, two hundred eleven million, one hundred ten thousand, two hundred twelve".