21222022220093 has 2 divisors, whose sum is σ = 21222022220094. Its totient is φ = 21222022220092.

The previous prime is 21222022220057. The next prime is 21222022220101. The reversal of 21222022220093 is 39002222022212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21193519664164 + 28502555929 = 4603642^2 + 168827^2 .

It is a cyclic number.

It is not a de Polignac number, because 21222022220093 - 2²⁶ = 21221955111229 is a prime.

It is a super-2 number, since 2×21222022220093² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21222022220293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611011110046 + 10611011110047.

It is an arithmetic number, because the mean of its divisors is an integer number (10611011110047).

Almost surely, 2^{21222022220093} is an apocalyptic number.

It is an amenable number.

21222022220093 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222022220093 is an equidigital number, since it uses as much as digits as its factorization.

21222022220093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 21222022220093 in words is "twenty-one trillion, two hundred twenty-two billion, twenty-two million, two hundred twenty thousand, ninety-three".