212022221310 has 48 divisors (see below), whose sum is σ = 561658878144. Its totient is φ = 55472479296.

The previous prime is 212022221297. The next prime is 212022221311. The reversal of 212022221310 is 13122220212.

It is a super-2 number, since 2×212022221310² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212022221311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22219782 + ... + 22229321.

It is an arithmetic number, because the mean of its divisors is an integer number (11701226628).

Almost surely, 2^212022221310 is an apocalyptic number.

212022221310 is an abundant number, since it is smaller than the sum of its proper divisors (349636656834).

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

212022221310 is a wasteful number, since it uses less digits than its factorization.

212022221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44449169 (or 44449166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212022221310 its reverse (13122220212), we get a palindrome (225144441522).

The spelling of 212022221310 in words is "two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, three hundred ten".