122021001332221 has 2 divisors, whose sum is σ = 122021001332222. Its totient is φ = 122021001332220.

The previous prime is 122021001332183. The next prime is 122021001332273. The reversal of 122021001332221 is 122233100120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112546849616100 + 9474151716121 = 10608810^2 + 3078011^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021001332221 - 2²³ = 122020992943613 is a prime.

It is a super-2 number, since 2×122021001332221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122021001332192 and 122021001332201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021001332521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010500666110 + 61010500666111.

It is an arithmetic number, because the mean of its divisors is an integer number (61010500666111).

Almost surely, 2^{122021001332221} is an apocalyptic number.

It is an amenable number.

122021001332221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021001332221 is an equidigital number, since it uses as much as digits as its factorization.

122021001332221 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 22.

Adding to 122021001332221 its reverse (122233100120221), we get a palindrome (244254101452442).

The spelling of 122021001332221 in words is "one hundred twenty-two trillion, twenty-one billion, one million, three hundred thirty-two thousand, two hundred twenty-one".