12222110021 has 8 divisors (see below), whose sum is σ = 13342532544. Its totient is φ = 11103241120.

The previous prime is 12222110009. The next prime is 12222110039. The reversal of 12222110021 is 12001122221.

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 12222110021 - 2³⁰ = 11148368197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12222109978 and 12222110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222110071) 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, 371921 + ... + 403446.

It is an arithmetic number, because the mean of its divisors is an integer number (1667816568).

Almost surely, 2^12222110021 is an apocalyptic number.

12222110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12222110021 is a deficient number, since it is larger than the sum of its proper divisors (1120422523).

12222110021 is a wasteful number, since it uses less digits than its factorization.

12222110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776811.

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

Adding to 12222110021 its reverse (12001122221), we get a palindrome (24223232242).

The spelling of 12222110021 in words is "twelve billion, two hundred twenty-two million, one hundred ten thousand, twenty-one".