211222211222022 has 192 divisors, whose sum is σ = 592930070417664. Its totient is φ = 49273966344960.

The previous prime is 211222211222017. The next prime is 211222211222023. The reversal of 211222211222022 is 220222112222112.

It is a happy number.

It is a super-2 number, since 2×211222211222022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222211221983 and 211222211222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222211222023) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 66337368 + ... + 69448475.

It is an arithmetic number, because the mean of its divisors is an integer number (3088177450092).

Almost surely, 2^{211222211222022} is an apocalyptic number.

211222211222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211222211222022 is an abundant number, since it is smaller than the sum of its proper divisors (381707859195642).

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

211222211222022 is a wasteful number, since it uses less digits than its factorization.

211222211222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135785923 (or 135785916 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211222211222022 its reverse (220222112222112), we get a palindrome (431444323444134).

The spelling of 211222211222022 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, twenty-two".