12212022013 has 8 divisors (see below), whose sum is σ = 12549202232. Its totient is φ = 11875216896.

The previous prime is 12212022001. The next prime is 12212022037. The reversal of 12212022013 is 31022021221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1217870404 + 10994151609 = 34898^2 + 104853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12212022013 - 2⁹ = 12212021501 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 (12212029013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27120 + ... + 158617.

It is an arithmetic number, because the mean of its divisors is an integer number (1568650279).

Almost surely, 2^12212022013 is an apocalyptic number.

It is an amenable number.

12212022013 is a deficient number, since it is larger than the sum of its proper divisors (337180219).

12212022013 is a wasteful number, since it uses less digits than its factorization.

12212022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187551.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12212022013 its reverse (31022021221), we get a palindrome (43234043234).

The spelling of 12212022013 in words is "twelve billion, two hundred twelve million, twenty-two thousand, thirteen".