2001201021229 has 2 divisors, whose sum is σ = 2001201021230. Its totient is φ = 2001201021228.

The previous prime is 2001201021179. The next prime is 2001201021247. The reversal of 2001201021229 is 9221201021002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2001169549129 + 31472100 = 1414627^2 + 5610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001201021229 - 2⁷ = 2001201021101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001201021299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000600510614 + 1000600510615.

It is an arithmetic number, because the mean of its divisors is an integer number (1000600510615).

Almost surely, 2^{2001201021229} is an apocalyptic number.

It is an amenable number.

2001201021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001201021229 is an equidigital number, since it uses as much as digits as its factorization.

2001201021229 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 spelling of 2001201021229 in words is "two trillion, one billion, two hundred one million, twenty-one thousand, two hundred twenty-nine".