2221010231229 has 18 divisors (see below), whose sum is σ = 3218409517050. Its totient is φ = 1475942315328.

The previous prime is 2221010231227. The next prime is 2221010231243. The reversal of 2221010231229 is 9221320101222.

2221010231229 is a `hidden beast` number, since 2 + 221 + 0 + 102 + 312 + 29 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1774347129 + 2219235884100 = 42123^2 + 1489710^2 .

It is not a de Polignac number, because 2221010231229 - 2¹ = 2221010231227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221010231227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 377754 + ... + 2141195.

It is an arithmetic number, because the mean of its divisors is an integer number (178800528725).

Almost surely, 2^{2221010231229} is an apocalyptic number.

It is an amenable number.

2221010231229 is a deficient number, since it is larger than the sum of its proper divisors (997399285821).

2221010231229 is an equidigital number, since it uses as much as digits as its factorization.

2221010231229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519581 (or 2519265 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 2221010231229 in words is "two trillion, two hundred twenty-one billion, ten million, two hundred thirty-one thousand, two hundred twenty-nine".