1020121112222 has 8 divisors (see below), whose sum is σ = 1530186123672. Its totient is φ = 510059071000.

The previous prime is 1020121112161. The next prime is 1020121112239. The reversal of 1020121112222 is 2222111210201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020121112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605597 + ... + 1551447.

It is an arithmetic number, because the mean of its divisors is an integer number (191273265459).

Almost surely, 2^{1020121112222} is an apocalyptic number.

1020121112222 is a deficient number, since it is larger than the sum of its proper divisors (510065011450).

1020121112222 is an equidigital number, since it uses as much as digits as its factorization.

1020121112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485114.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1020121112222 its reverse (2222111210201), we get a palindrome (3242232322423).

The spelling of 1020121112222 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-two".