20212312220344 has 16 divisors (see below), whose sum is σ = 39120604297920. Its totient is φ = 9780151074240.

The previous prime is 20212312220299. The next prime is 20212312220351. The reversal of 20212312220344 is 44302221321202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40750629229 + ... + 40750629724.

It is an arithmetic number, because the mean of its divisors is an integer number (2445037768620).

Almost surely, 2^{20212312220344} is an apocalyptic number.

It is an amenable number.

20212312220344 is a deficient number, since it is larger than the sum of its proper divisors (18908292077576).

20212312220344 is a wasteful number, since it uses less digits than its factorization.

20212312220344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81501258990 (or 81501258986 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20212312220344 its reverse (44302221321202), we get a palindrome (64514533541546).

The spelling of 20212312220344 in words is "twenty trillion, two hundred twelve billion, three hundred twelve million, two hundred twenty thousand, three hundred forty-four".