4020102010205 has 8 divisors (see below), whose sum is σ = 4824178044504. Its totient is φ = 3216044520000.

The previous prime is 4020102010201. The next prime is 4020102010241. The reversal of 4020102010205 is 5020102010204.

It can be written as a sum of positive squares in 4 ways, for example, as 780022809721 + 3240079200484 = 883189^2 + 1800022^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4020102010205 - 2² = 4020102010201 is a prime.

It is a super-2 number, since 2×4020102010205² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020102010201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4154546 + ... + 5029955.

It is an arithmetic number, because the mean of its divisors is an integer number (603022255563).

Almost surely, 2^{4020102010205} is an apocalyptic number.

It is an amenable number.

4020102010205 is a deficient number, since it is larger than the sum of its proper divisors (804076034299).

4020102010205 is an equidigital number, since it uses as much as digits as its factorization.

4020102010205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272047.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 4020102010205 its reverse (5020102010204), we get a palindrome (9040204020409).

Subtracting 4020102010205 from its reverse (5020102010204), we obtain a palindrome (999999999999).

The spelling of 4020102010205 in words is "four trillion, twenty billion, one hundred two million, ten thousand, two hundred five".