1022221230331 has 4 divisors (see below), whose sum is σ = 1168252834672. Its totient is φ = 876189625992.

The previous prime is 1022221230323. The next prime is 1022221230341. The reversal of 1022221230331 is 1330321222201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1022221230331 - 2³ = 1022221230323 is a prime.

It is a super-2 number, since 2×1022221230331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022221230311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73015802160 + ... + 73015802173.

It is an arithmetic number, because the mean of its divisors is an integer number (292063208668).

Almost surely, 2^{1022221230331} is an apocalyptic number.

1022221230331 is a deficient number, since it is larger than the sum of its proper divisors (146031604341).

1022221230331 is an equidigital number, since it uses as much as digits as its factorization.

1022221230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146031604340.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1022221230331 its reverse (1330321222201), we get a palindrome (2352542452532).

The spelling of 1022221230331 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred thirty thousand, three hundred thirty-one".