12202021222 has 4 divisors (see below), whose sum is σ = 18303031836. Its totient is φ = 6101010610.

The previous prime is 12202021207. The next prime is 12202021253. The reversal of 12202021222 is 22212020221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22212020221 = 59 ⋅376474919.

It is a junction number, because it is equal to n+sod(n) for n = 12202021196 and 12202021205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050505304 + ... + 3050505307.

It is an arithmetic number, because the mean of its divisors is an integer number (4575757959).

Almost surely, 2^12202021222 is an apocalyptic number.

12202021222 is a deficient number, since it is larger than the sum of its proper divisors (6101010614).

12202021222 is an equidigital number, since it uses as much as digits as its factorization.

12202021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101010613.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12202021222 its reverse (22212020221), we get a palindrome (34414041443).

The spelling of 12202021222 in words is "twelve billion, two hundred two million, twenty-one thousand, two hundred twenty-two".