4021010232209 has 2 divisors, whose sum is σ = 4021010232210. Its totient is φ = 4021010232208.

The previous prime is 4021010232199. The next prime is 4021010232233. The reversal of 4021010232209 is 9022320101204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3799478100625 + 221532131584 = 1949225^2 + 470672^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021010232209 - 2⁴ = 4021010232193 is a prime.

It is a super-2 number, since 2×4021010232209² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4021010232299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010505116104 + 2010505116105.

It is an arithmetic number, because the mean of its divisors is an integer number (2010505116105).

Almost surely, 2^{4021010232209} is an apocalyptic number.

It is an amenable number.

4021010232209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021010232209 is an equidigital number, since it uses as much as digits as its factorization.

4021010232209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 4021010232209 in words is "four trillion, twenty-one billion, ten million, two hundred thirty-two thousand, two hundred nine".