2122581229 has 2 divisors, whose sum is σ = 2122581230. Its totient is φ = 2122581228.

The previous prime is 2122581211. The next prime is 2122581271. The reversal of 2122581229 is 9221852212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1199029129 + 923552100 = 34627^2 + 30390^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122581229 - 2⁷ = 2122581101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122581194 and 2122581203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122581299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061290614 + 1061290615.

It is an arithmetic number, because the mean of its divisors is an integer number (1061290615).

Almost surely, 2^2122581229 is an apocalyptic number.

It is an amenable number.

2122581229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122581229 is an equidigital number, since it uses as much as digits as its factorization.

2122581229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 34.

The square root of 2122581229 is about 46071.4795616551. The cubic root of 2122581229 is about 1285.1528186586.

The spelling of 2122581229 in words is "two billion, one hundred twenty-two million, five hundred eighty-one thousand, two hundred twenty-nine".