211212021211222 has 8 divisors (see below), whose sum is σ = 316818661102272. Its totient is φ = 105605800843800.

The previous prime is 211212021211189. The next prime is 211212021211267. The reversal of 211212021211222 is 222112120212112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211212021211222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212021211193 and 211212021211202.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 103619229 + ... + 105637912.

It is an arithmetic number, because the mean of its divisors is an integer number (39602332637784).

Almost surely, 2^{211212021211222} is an apocalyptic number.

211212021211222 is a deficient number, since it is larger than the sum of its proper divisors (105606639891050).

211212021211222 is a wasteful number, since it uses less digits than its factorization.

211212021211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209761814.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211212021211222 its reverse (222112120212112), we get a palindrome (433324141423334).

It can be divided in two parts, 2112120212112 and 22, that multiplied together give a palindrome (46466644666464).

The spelling of 211212021211222 in words is "two hundred eleven trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand, two hundred twenty-two".