12022201021 has 8 divisors (see below), whose sum is σ = 12289325760. Its totient is φ = 11757188352.

The previous prime is 12022201001. The next prime is 12022201031. The reversal of 12022201021 is 12010222021.

It is a happy number.

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 12022201021 - 2¹⁵ = 12022168253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022200992 and 12022201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022201001) 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, 516505 + ... + 539278.

It is an arithmetic number, because the mean of its divisors is an integer number (1536165720).

Almost surely, 2^12022201021 is an apocalyptic number.

It is an amenable number.

12022201021 is a deficient number, since it is larger than the sum of its proper divisors (267124739).

12022201021 is a wasteful number, since it uses less digits than its factorization.

12022201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056035.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12022201021 its reverse (12010222021), we get a palindrome (24032423042).

The spelling of 12022201021 in words is "twelve billion, twenty-two million, two hundred one thousand, twenty-one".