1012120211121 has 8 divisors (see below), whose sum is σ = 1374955758720. Its totient is φ = 662015735472.

The previous prime is 1012120211093. The next prime is 1012120211261. The reversal of 1012120211121 is 1211120212101.

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 1012120211121 - 2¹⁸ = 1012119948977 is a prime.

It is a super-2 number, since 2×1012120211121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012120211121.

It is not an unprimeable number, because it can be changed into a prime (1012120211021) 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, 3182767801 + ... + 3182768118.

It is an arithmetic number, because the mean of its divisors is an integer number (171869469840).

Almost surely, 2^{1012120211121} is an apocalyptic number.

It is an amenable number.

1012120211121 is a deficient number, since it is larger than the sum of its proper divisors (362835547599).

1012120211121 is an equidigital number, since it uses as much as digits as its factorization.

1012120211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6365535975.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012120211121 its reverse (1211120212101), we get a palindrome (2223240423222).

The spelling of 1012120211121 in words is "one trillion, twelve billion, one hundred twenty million, two hundred eleven thousand, one hundred twenty-one".