12022211021 has 8 divisors (see below), whose sum is σ = 12547843584. Its totient is φ = 11496822480.

The previous prime is 12022210979. The next prime is 12022211023. The reversal of 12022211021 is 12011222021.

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 12022211021 - 2¹⁴ = 12022194637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022210987 and 12022211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022211023) 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, 43511 + ... + 161051.

It is an arithmetic number, because the mean of its divisors is an integer number (1568480448).

Almost surely, 2^12022211021 is an apocalyptic number.

It is an amenable number.

12022211021 is a deficient number, since it is larger than the sum of its proper divisors (525632563).

12022211021 is a wasteful number, since it uses less digits than its factorization.

12022211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122011.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12022211021 its reverse (12011222021), we get a palindrome (24033433042).

The spelling of 12022211021 in words is "twelve billion, twenty-two million, two hundred eleven thousand, twenty-one".