20212012222207 has 4 divisors (see below), whose sum is σ = 21766782393160. Its totient is φ = 18657242051256.

The previous prime is 20212012222189. The next prime is 20212012222211. The reversal of 20212012222207 is 70222221021202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20212012222207 - 2¹¹ = 20212012220159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212012232207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777385085457 + ... + 777385085482.

It is an arithmetic number, because the mean of its divisors is an integer number (5441695598290).

Almost surely, 2^{20212012222207} is an apocalyptic number.

20212012222207 is a deficient number, since it is larger than the sum of its proper divisors (1554770170953).

20212012222207 is a wasteful number, since it uses less digits than its factorization.

20212012222207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554770170952.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 20212012222207 its reverse (70222221021202), we get a palindrome (90434233243409).

The spelling of 20212012222207 in words is "twenty trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred seven".