22431221147 has 2 divisors, whose sum is σ = 22431221148. Its totient is φ = 22431221146.

The previous prime is 22431221101. The next prime is 22431221159. The reversal of 22431221147 is 74112213422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22431221147 - 2¹² = 22431217051 is a prime.

It is not a weakly prime, because it can be changed into another prime (22430221147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11215610573 + 11215610574.

It is an arithmetic number, because the mean of its divisors is an integer number (11215610574).

Almost surely, 2^22431221147 is an apocalyptic number.

22431221147 is a deficient number, since it is larger than the sum of its proper divisors (1).

22431221147 is an equidigital number, since it uses as much as digits as its factorization.

22431221147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

Adding to 22431221147 its reverse (74112213422), we get a palindrome (96543434569).

The spelling of 22431221147 in words is "twenty-two billion, four hundred thirty-one million, two hundred twenty-one thousand, one hundred forty-seven".