1222200010121 has 8 divisors (see below), whose sum is σ = 1222915395240. Its totient is φ = 1221484819968.

The previous prime is 1222200010093. The next prime is 1222200010169. The reversal of 1222200010121 is 1210100022221.

It can be written as a sum of positive squares in 4 ways, for example, as 1173452227600 + 48747782521 = 1083260^2 + 220789^2 .

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 1222200010121 - 2¹⁰ = 1222200009097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222200010096 and 1222200010105.

It is not an unprimeable number, because it can be changed into a prime (1222200000121) 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, 13587125 + ... + 13676781.

It is an arithmetic number, because the mean of its divisors is an integer number (152864424405).

Almost surely, 2^{1222200010121} is an apocalyptic number.

It is an amenable number.

1222200010121 is a deficient number, since it is larger than the sum of its proper divisors (715385119).

1222200010121 is an equidigital number, since it uses as much as digits as its factorization.

1222200010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97483.

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

Adding to 1222200010121 its reverse (1210100022221), we get a palindrome (2432300032342).

The spelling of 1222200010121 in words is "one trillion, two hundred twenty-two billion, two hundred million, ten thousand, one hundred twenty-one".