222021021331 has 2 divisors, whose sum is σ = 222021021332. Its totient is φ = 222021021330.

The previous prime is 222021021311. The next prime is 222021021457. The reversal of 222021021331 is 133120120222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222021021331 - 2³⁷ = 84582067859 is a prime.

It is a super-2 number, since 2×222021021331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222021021299 and 222021021308.

It is not a weakly prime, because it can be changed into another prime (222021021311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111010510665 + 111010510666.

It is an arithmetic number, because the mean of its divisors is an integer number (111010510666).

Almost surely, 2^222021021331 is an apocalyptic number.

222021021331 is a deficient number, since it is larger than the sum of its proper divisors (1).

222021021331 is an equidigital number, since it uses as much as digits as its factorization.

222021021331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 222021021331 its reverse (133120120222), we get a palindrome (355141141553).

The spelling of 222021021331 in words is "two hundred twenty-two billion, twenty-one million, twenty-one thousand, three hundred thirty-one".