221232222881051 has 2 divisors, whose sum is σ = 221232222881052. Its totient is φ = 221232222881050.

The previous prime is 221232222880993. The next prime is 221232222881053. The reversal of 221232222881051 is 150188222232122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221232222881051 - 2⁶ = 221232222880987 is a prime.

Together with 221232222881053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221232222881053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616111440525 + 110616111440526.

It is an arithmetic number, because the mean of its divisors is an integer number (110616111440526).

Almost surely, 2^{221232222881051} is an apocalyptic number.

221232222881051 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232222881051 is an equidigital number, since it uses as much as digits as its factorization.

221232222881051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 221232222881051 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, two hundred twenty-two million, eight hundred eighty-one thousand, fifty-one".