212221101022 has 12 divisors (see below), whose sum is σ = 370304166240. Its totient is φ = 90951900396.

The previous prime is 212221101019. The next prime is 212221101041. The reversal of 212221101022 is 220101122212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212221100987 and 212221101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1082760622 + ... + 1082760817.

It is an arithmetic number, because the mean of its divisors is an integer number (30858680520).

Almost surely, 2^212221101022 is an apocalyptic number.

212221101022 is a deficient number, since it is larger than the sum of its proper divisors (158083065218).

212221101022 is a wasteful number, since it uses less digits than its factorization.

212221101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165521455 (or 2165521448 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212221101022 its reverse (220101122212), we get a palindrome (432322223234).

The spelling of 212221101022 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred one thousand, twenty-two".