12222102021 has 16 divisors (see below), whose sum is σ = 16489713600. Its totient is φ = 8051395968.

The previous prime is 12222102017. The next prime is 12222102031. The reversal of 12222102021 is 12020122221.

It is not a de Polignac number, because 12222102021 - 2² = 12222102017 is a prime.

It is a super-3 number, since 3×12222102021³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222102001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431910 + ... + 459336.

It is an arithmetic number, because the mean of its divisors is an integer number (1030607100).

Almost surely, 2^12222102021 is an apocalyptic number.

It is an amenable number.

12222102021 is a deficient number, since it is larger than the sum of its proper divisors (4267611579).

12222102021 is a wasteful number, since it uses less digits than its factorization.

12222102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29188.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12222102021 its reverse (12020122221), we get a palindrome (24242224242).

The spelling of 12222102021 in words is "twelve billion, two hundred twenty-two million, one hundred two thousand, twenty-one".