1202221331 has 2 divisors, whose sum is σ = 1202221332. Its totient is φ = 1202221330.

The previous prime is 1202221327. The next prime is 1202221337. The reversal of 1202221331 is 1331222021.

It is a weak prime.

It is an emirp because it is prime and its reverse (1331222021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202221331 - 2² = 1202221327 is a prime.

It is a super-2 number, since 2×1202221331² = 2890672257422823122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202221337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110665 + 601110666.

It is an arithmetic number, because the mean of its divisors is an integer number (601110666).

Almost surely, 2^1202221331 is an apocalyptic number.

1202221331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202221331 is an equidigital number, since it uses as much as digits as its factorization.

1202221331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1202221331 is about 34673.0634787294. The cubic root of 1202221331 is about 1063.3138640142.

Adding to 1202221331 its reverse (1331222021), we get a palindrome (2533443352).

The spelling of 1202221331 in words is "one billion, two hundred two million, two hundred twenty-one thousand, three hundred thirty-one".