1012202110321 has 4 divisors (see below), whose sum is σ = 1026458478144. Its totient is φ = 997945742500.

The previous prime is 1012202110307. The next prime is 1012202110331. The reversal of 1012202110321 is 1230112022101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012202110321 - 2¹¹ = 1012202108273 is a prime.

It is a super-2 number, since 2×1012202110321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012202110295 and 1012202110304.

It is not an unprimeable number, because it can be changed into a prime (1012202110331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7128183805 + ... + 7128183946.

It is an arithmetic number, because the mean of its divisors is an integer number (256614619536).

Almost surely, 2^{1012202110321} is an apocalyptic number.

It is an amenable number.

1012202110321 is a deficient number, since it is larger than the sum of its proper divisors (14256367823).

1012202110321 is an equidigital number, since it uses as much as digits as its factorization.

1012202110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14256367822.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1012202110321 its reverse (1230112022101), we get a palindrome (2242314132422).

The spelling of 1012202110321 in words is "one trillion, twelve billion, two hundred two million, one hundred ten thousand, three hundred twenty-one".