2210133231221 has 2 divisors, whose sum is σ = 2210133231222. Its totient is φ = 2210133231220.

The previous prime is 2210133231161. The next prime is 2210133231269. The reversal of 2210133231221 is 1221323310122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2194504480996 + 15628750225 = 1481386^2 + 125015^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210133231221 - 2³⁰ = 2209059489397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210133221221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105066615610 + 1105066615611.

It is an arithmetic number, because the mean of its divisors is an integer number (1105066615611).

Almost surely, 2^{2210133231221} is an apocalyptic number.

It is an amenable number.

2210133231221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210133231221 is an equidigital number, since it uses as much as digits as its factorization.

2210133231221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2210133231221 its reverse (1221323310122), we get a palindrome (3431456541343).

The spelling of 2210133231221 in words is "two trillion, two hundred ten billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred twenty-one".