212202222221022 has 64 divisors (see below), whose sum is σ = 463409719031808. Its totient is φ = 64244973132000.

The previous prime is 212202222220997. The next prime is 212202222221161. The reversal of 212202222221022 is 220122222202212.

It is a junction number, because it is equal to n+sod(n) for n = 212202222220983 and 212202222221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319670823 + ... + 320333949.

It is an arithmetic number, because the mean of its divisors is an integer number (7240776859872).

Almost surely, 2^{212202222221022} is an apocalyptic number.

212202222221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212202222221022 is an abundant number, since it is smaller than the sum of its proper divisors (251207496810786).

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

212202222221022 is a wasteful number, since it uses less digits than its factorization.

212202222221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667565.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212202222221022 its reverse (220122222202212), we get a palindrome (432324444423234).

The spelling of 212202222221022 in words is "two hundred twelve trillion, two hundred two billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-two".