21222201121019 has 2 divisors, whose sum is σ = 21222201121020. Its totient is φ = 21222201121018.

The previous prime is 21222201120941. The next prime is 21222201121057. The reversal of 21222201121019 is 91012110222212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21222201121019 - 2²⁸ = 21221932685563 is a prime.

It is a super-2 number, since 2×21222201121019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21222201127019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611100560509 + 10611100560510.

It is an arithmetic number, because the mean of its divisors is an integer number (10611100560510).

Almost surely, 2^{21222201121019} is an apocalyptic number.

21222201121019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222201121019 is an equidigital number, since it uses as much as digits as its factorization.

21222201121019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 21222201121019 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-one thousand, nineteen".