21041222214043 has 2 divisors, whose sum is σ = 21041222214044. Its totient is φ = 21041222214042.

The previous prime is 21041222214011. The next prime is 21041222214091. The reversal of 21041222214043 is 34041222214012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21041222214043 - 2⁵ = 21041222214011 is a prime.

It is not a weakly prime, because it can be changed into another prime (21041222214643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10520611107021 + 10520611107022.

It is an arithmetic number, because the mean of its divisors is an integer number (10520611107022).

Almost surely, 2^{21041222214043} is an apocalyptic number.

21041222214043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21041222214043 is an equidigital number, since it uses as much as digits as its factorization.

21041222214043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21041222214043 its reverse (34041222214012), we get a palindrome (55082444428055).

The spelling of 21041222214043 in words is "twenty-one trillion, forty-one billion, two hundred twenty-two million, two hundred fourteen thousand, forty-three".