1012333222221 has 4 divisors (see below), whose sum is σ = 1349777629632. Its totient is φ = 674888814812.

The previous prime is 1012333222217. The next prime is 1012333222223. The reversal of 1012333222221 is 1222223332101.

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 1012333222221 - 2² = 1012333222217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012333222191 and 1012333222200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012333222223) 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, 168722203701 + ... + 168722203706.

It is an arithmetic number, because the mean of its divisors is an integer number (337444407408).

Almost surely, 2^{1012333222221} is an apocalyptic number.

It is an amenable number.

1012333222221 is a deficient number, since it is larger than the sum of its proper divisors (337444407411).

1012333222221 is an equidigital number, since it uses as much as digits as its factorization.

1012333222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337444407410.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1012333222221 its reverse (1222223332101), we get a palindrome (2234556554322).

The spelling of 1012333222221 in words is "one trillion, twelve billion, three hundred thirty-three million, two hundred twenty-two thousand, two hundred twenty-one".