12220020210122 has 4 divisors (see below), whose sum is σ = 18330030315186. Its totient is φ = 6110010105060.

The previous prime is 12220020210061. The next prime is 12220020210143. The reversal of 12220020210122 is 22101202002221.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6410816377681 + 5809203832441 = 2531959^2 + 2410229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12220020210122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055005052529 + ... + 3055005052532.

Almost surely, 2^{12220020210122} is an apocalyptic number.

12220020210122 is a deficient number, since it is larger than the sum of its proper divisors (6110010105064).

12220020210122 is an equidigital number, since it uses as much as digits as its factorization.

12220020210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110010105063.

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

Adding to 12220020210122 its reverse (22101202002221), we get a palindrome (34321222212343).

The spelling of 12220020210122 in words is "twelve trillion, two hundred twenty billion, twenty million, two hundred ten thousand, one hundred twenty-two".