12201020210122 has 4 divisors (see below), whose sum is σ = 18301530315186. Its totient is φ = 6100510105060.

The previous prime is 12201020210083. The next prime is 12201020210143. The reversal of 12201020210122 is 22101202010221.

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., 11328199016121 + 872821194001 = 3365739^2 + 934249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12201020210096 and 12201020210105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050255052529 + ... + 3050255052532.

Almost surely, 2^{12201020210122} is an apocalyptic number.

12201020210122 is a deficient number, since it is larger than the sum of its proper divisors (6100510105064).

12201020210122 is an equidigital number, since it uses as much as digits as its factorization.

12201020210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100510105063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201020210122 its reverse (22101202010221), we get a palindrome (34302222220343).

The spelling of 12201020210122 in words is "twelve trillion, two hundred one billion, twenty million, two hundred ten thousand, one hundred twenty-two".