2122021229 has 2 divisors, whose sum is σ = 2122021230. Its totient is φ = 2122021228.

The previous prime is 2122021219. The next prime is 2122021241. The reversal of 2122021229 is 9221202212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1471873225 + 650148004 = 38365^2 + 25498^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122021229 - 2¹² = 2122017133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122021219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061010614 + 1061010615.

It is an arithmetic number, because the mean of its divisors is an integer number (1061010615).

Almost surely, 2^2122021229 is an apocalyptic number.

It is an amenable number.

2122021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122021229 is an equidigital number, since it uses as much as digits as its factorization.

2122021229 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 23.

The square root of 2122021229 is about 46065.4016480916. The cubic root of 2122021229 is about 1285.0397882172.

The spelling of 2122021229 in words is "two billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-nine".