2211021229 has 2 divisors, whose sum is σ = 2211021230. Its totient is φ = 2211021228.

The previous prime is 2211021133. The next prime is 2211021233. The reversal of 2211021229 is 9221201122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1764840100 + 446181129 = 42010^2 + 21123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211021229 - 2⁷ = 2211021101 is a prime.

It is a super-2 number, since 2×2211021229² = 9777229750177340882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211021259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105510614 + 1105510615.

It is an arithmetic number, because the mean of its divisors is an integer number (1105510615).

Almost surely, 2^2211021229 is an apocalyptic number.

It is an amenable number.

2211021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211021229 is an equidigital number, since it uses as much as digits as its factorization.

2211021229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2211021229 is about 47021.4975197515. The cubic root of 2211021229 is about 1302.7596659829.

The spelling of 2211021229 in words is "two billion, two hundred eleven million, twenty-one thousand, two hundred twenty-nine".