22215521010143 has 2 divisors, whose sum is σ = 22215521010144. Its totient is φ = 22215521010142.

The previous prime is 22215521010121. The next prime is 22215521010149. The reversal of 22215521010143 is 34101012551222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22215521010143 - 2⁸ = 22215521009887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22215521010149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107760505071 + 11107760505072.

It is an arithmetic number, because the mean of its divisors is an integer number (11107760505072).

Almost surely, 2^{22215521010143} is an apocalyptic number.

22215521010143 is a deficient number, since it is larger than the sum of its proper divisors (1).

22215521010143 is an equidigital number, since it uses as much as digits as its factorization.

22215521010143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 22215521010143 its reverse (34101012551222), we get a palindrome (56316533561365).

The spelling of 22215521010143 in words is "twenty-two trillion, two hundred fifteen billion, five hundred twenty-one million, ten thousand, one hundred forty-three".