211022230122220 has 192 divisors, whose sum is σ = 508487649546240. Its totient is φ = 72852486220800.

The previous prime is 211022230122217. The next prime is 211022230122247. The reversal of 211022230122220 is 22221032220112.

It is a happy number.

It is a super-2 number, since 2×211022230122220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 211022230122191 and 211022230122200.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6155285199 + ... + 6155319481.

It is an arithmetic number, because the mean of its divisors is an integer number (2648373174720).

Almost surely, 2^{211022230122220} is an apocalyptic number.

211022230122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211022230122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254243824773120).

211022230122220 is an abundant number, since it is smaller than the sum of its proper divisors (297465419424020).

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

211022230122220 is a wasteful number, since it uses less digits than its factorization.

211022230122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51416 (or 51414 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 211022230122220 its reverse (22221032220112), we get a palindrome (233243262342332).

The spelling of 211022230122220 in words is "two hundred eleven trillion, twenty-two billion, two hundred thirty million, one hundred twenty-two thousand, two hundred twenty".