12010021022222 has 4 divisors (see below), whose sum is σ = 18015031533336. Its totient is φ = 6005010511110.

The previous prime is 12010021022183. The next prime is 12010021022281. The reversal of 12010021022222 is 22222012001021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12010021022222.

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, 3002505255554 + ... + 3002505255557.

It is an arithmetic number, because the mean of its divisors is an integer number (4503757883334).

Almost surely, 2^{12010021022222} is an apocalyptic number.

12010021022222 is a deficient number, since it is larger than the sum of its proper divisors (6005010511114).

12010021022222 is an equidigital number, since it uses as much as digits as its factorization.

12010021022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005010511113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12010021022222 its reverse (22222012001021), we get a palindrome (34232033023243).

The spelling of 12010021022222 in words is "twelve trillion, ten billion, twenty-one million, twenty-two thousand, two hundred twenty-two".