2331102219221 has 2 divisors, whose sum is σ = 2331102219222. Its totient is φ = 2331102219220.

The previous prime is 2331102219217. The next prime is 2331102219239. The reversal of 2331102219221 is 1229122011332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2266199052100 + 64903167121 = 1505390^2 + 254761^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331102219221 - 2² = 2331102219217 is a prime.

It is a super-2 number, since 2×2331102219221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331102219241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165551109610 + 1165551109611.

It is an arithmetic number, because the mean of its divisors is an integer number (1165551109611).

Almost surely, 2^{2331102219221} is an apocalyptic number.

It is an amenable number.

2331102219221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331102219221 is an equidigital number, since it uses as much as digits as its factorization.

2331102219221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 2331102219221 in words is "two trillion, three hundred thirty-one billion, one hundred two million, two hundred nineteen thousand, two hundred twenty-one".