211222222222212 has 72 divisors (see below), whose sum is σ = 546004972472960. Its totient is φ = 68828321315520.

The previous prime is 211222222222201. The next prime is 211222222222223. The reversal of 211222222222212 is 212222222222112.

211222222222212 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 2 + 2 + 222 + 222 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (211222222222201) and next prime (211222222222223).

It is a super-2 number, since 2×211222222222212² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294688012 + ... + 295403907.

Almost surely, 2^{211222222222212} is an apocalyptic number.

It is an amenable number.

211222222222212 is an abundant number, since it is smaller than the sum of its proper divisors (334782750250748).

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

211222222222212 is a wasteful number, since it uses less digits than its factorization.

211222222222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590092153 (or 590092148 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 211222222222212 its reverse (212222222222112), we get a palindrome (423444444444324).

The spelling of 211222222222212 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".