1220222010121 has 8 divisors (see below), whose sum is σ = 1284488038080. Its totient is φ = 1155960363888.

The previous prime is 1220222010103. The next prime is 1220222010167. The reversal of 1220222010121 is 1210102220221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1220222010121 - 2⁵ = 1220222010089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220222010095 and 1220222010104.

It is not an unprimeable number, because it can be changed into a prime (1220222013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515941 + ... + 1645186.

It is an arithmetic number, because the mean of its divisors is an integer number (160561004760).

Almost surely, 2^{1220222010121} is an apocalyptic number.

It is an amenable number.

1220222010121 is a deficient number, since it is larger than the sum of its proper divisors (64266027959).

1220222010121 is a wasteful number, since it uses less digits than its factorization.

1220222010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190863.

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

Adding to 1220222010121 its reverse (1210102220221), we get a palindrome (2430324230342).

The spelling of 1220222010121 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, ten thousand, one hundred twenty-one".