20212212102222 has 16 divisors (see below), whose sum is σ = 46199341948032. Its totient is φ = 5774917743480.

The previous prime is 20212212102197. The next prime is 20212212102239. The reversal of 20212212102222 is 22220121221202.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 240621572604 + ... + 240621572687.

It is an arithmetic number, because the mean of its divisors is an integer number (2887458871752).

Almost surely, 2^{20212212102222} is an apocalyptic number.

20212212102222 is an abundant number, since it is smaller than the sum of its proper divisors (25987129845810).

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

20212212102222 is a wasteful number, since it uses less digits than its factorization.

20212212102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481243145303.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20212212102222 its reverse (22220121221202), we get a palindrome (42432333323424).

The spelling of 20212212102222 in words is "twenty trillion, two hundred twelve billion, two hundred twelve million, one hundred two thousand, two hundred twenty-two".