212221201222022 has 16 divisors (see below), whose sum is σ = 322203608358912. Its totient is φ = 104820287988360.

The previous prime is 212221201222013. The next prime is 212221201222099. The reversal of 212221201222022 is 220222102122212.

It is a super-2 number, since 2×212221201222022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70917758 + ... + 73849649.

It is an arithmetic number, because the mean of its divisors is an integer number (20137725522432).

Almost surely, 2^{212221201222022} is an apocalyptic number.

212221201222022 is a deficient number, since it is larger than the sum of its proper divisors (109982407136890).

212221201222022 is a wasteful number, since it uses less digits than its factorization.

212221201222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144776323.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212221201222022 its reverse (220222102122212), we get a palindrome (432443303344234).

The spelling of 212221201222022 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, twenty-two".