1012220212321 has 8 divisors (see below), whose sum is σ = 1027644201504. Its totient is φ = 996805524000.

The previous prime is 1012220212319. The next prime is 1012220212349. The reversal of 1012220212321 is 1232120222101.

1012220212321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1012220212321 - 2¹ = 1012220212319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012220272321) 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, 2105740 + ... + 2541373.

It is an arithmetic number, because the mean of its divisors is an integer number (128455525188).

Almost surely, 2^{1012220212321} is an apocalyptic number.

It is an amenable number.

1012220212321 is a deficient number, since it is larger than the sum of its proper divisors (15423989183).

1012220212321 is an equidigital number, since it uses as much as digits as its factorization.

1012220212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4650431.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1012220212321 its reverse (1232120222101), we get a palindrome (2244340434422).

The spelling of 1012220212321 in words is "one trillion, twelve billion, two hundred twenty million, two hundred twelve thousand, three hundred twenty-one".