212020021110222 has 192 divisors, whose sum is σ = 507081463848960. Its totient is φ = 63611243523072.

The previous prime is 212020021110217. The next prime is 212020021110263. The reversal of 212020021110222 is 222011120020212.

It is a happy number.

212020021110222 is a `hidden beast` number, since 2 + 1 + 20 + 200 + 211 + 10 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212020021110195 and 212020021110204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15909051723 + ... + 15909065049.

It is an arithmetic number, because the mean of its divisors is an integer number (2641049290880).

Almost surely, 2^{212020021110222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212020021110222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253540731924480).

212020021110222 is an abundant number, since it is smaller than the sum of its proper divisors (295061442738738).

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

212020021110222 is a wasteful number, since it uses less digits than its factorization.

212020021110222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967 (or 15964 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212020021110222 its reverse (222011120020212), we get a palindrome (434031141130434).

The spelling of 212020021110222 in words is "two hundred twelve trillion, twenty billion, twenty-one million, one hundred ten thousand, two hundred twenty-two".