221311121342107 has 2 divisors, whose sum is σ = 221311121342108. Its totient is φ = 221311121342106.

The previous prime is 221311121342099. The next prime is 221311121342117. The reversal of 221311121342107 is 701243121113122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221311121342107 - 2³ = 221311121342099 is a prime.

It is a super-2 number, since 2×221311121342107² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221311121342117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655560671053 + 110655560671054.

It is an arithmetic number, because the mean of its divisors is an integer number (110655560671054).

Almost surely, 2^{221311121342107} is an apocalyptic number.

221311121342107 is a deficient number, since it is larger than the sum of its proper divisors (1).

221311121342107 is an equidigital number, since it uses as much as digits as its factorization.

221311121342107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 221311121342107 its reverse (701243121113122), we get a palindrome (922554242455229).

The spelling of 221311121342107 in words is "two hundred twenty-one trillion, three hundred eleven billion, one hundred twenty-one million, three hundred forty-two thousand, one hundred seven".