212210111022 has 192 divisors, whose sum is σ = 540011372544. Its totient is φ = 54135889920.

The previous prime is 212210111021. The next prime is 212210111089. The reversal of 212210111022 is 220111012212.

It is a junction number, because it is equal to n+sod(n) for n = 212210110992 and 212210111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210111021) 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, 144261747 + ... + 144263217.

It is an arithmetic number, because the mean of its divisors is an integer number (2812559232).

Almost surely, 2^212210111022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212210111022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270005686272).

212210111022 is an abundant number, since it is smaller than the sum of its proper divisors (327801261522).

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

212210111022 is a wasteful number, since it uses less digits than its factorization.

212210111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212210111022 its reverse (220111012212), we get a palindrome (432321123234).

The spelling of 212210111022 in words is "two hundred twelve billion, two hundred ten million, one hundred eleven thousand, twenty-two".