211222022222122 has 64 divisors (see below), whose sum is σ = 327135994768800. Its totient is φ = 102244746240000.

The previous prime is 211222022222039. The next prime is 211222022222161. The reversal of 211222022222122 is 221222220222112.

It can be written as a sum of positive squares in 16 ways, for example, as 37964587494681 + 173257434727441 = 6161541^2 + 13162729^2 .

It is a super-2 number, since 2×211222022222122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10831333372 + ... + 10831352872.

Almost surely, 2^{211222022222122} is an apocalyptic number.

211222022222122 is a deficient number, since it is larger than the sum of its proper divisors (115913972546678).

211222022222122 is a wasteful number, since it uses less digits than its factorization.

211222022222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25099.

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

Adding to 211222022222122 its reverse (221222220222112), we get a palindrome (432444242444234).

The spelling of 211222022222122 in words is "two hundred eleven trillion, two hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".