12122113021 has 8 divisors (see below), whose sum is σ = 12290933088. Its totient is φ = 11954250000.

The previous prime is 12122113009. The next prime is 12122113061. The reversal of 12122113021 is 12031122121.

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

It is a cyclic number.

It is not a de Polignac number, because 12122113021 - 2¹⁵ = 12122080253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122112986 and 12122113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122113061) 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, 213735 + ... + 264436.

It is an arithmetic number, because the mean of its divisors is an integer number (1536366636).

Almost surely, 2^12122113021 is an apocalyptic number.

It is an amenable number.

12122113021 is a deficient number, since it is larger than the sum of its proper divisors (168820067).

12122113021 is a wasteful number, since it uses less digits than its factorization.

12122113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478523.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12122113021 its reverse (12031122121), we get a palindrome (24153235142).

The spelling of 12122113021 in words is "twelve billion, one hundred twenty-two million, one hundred thirteen thousand, twenty-one".