202110402401 has 4 divisors (see below), whose sum is σ = 202130966532. Its totient is φ = 202089838272.

The previous prime is 202110402379. The next prime is 202110402421. The reversal of 202110402401 is 104204011202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168986766400 + 33123636001 = 411080^2 + 181999^2 .

It is a cyclic number.

It is not a de Polignac number, because 202110402401 - 2⁶ = 202110402337 is a prime.

It is a super-2 number, since 2×202110402401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202110402401.

It is not an unprimeable number, because it can be changed into a prime (202110402421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10267316 + ... + 10286981.

It is an arithmetic number, because the mean of its divisors is an integer number (50532741633).

Almost surely, 2^202110402401 is an apocalyptic number.

It is an amenable number.

202110402401 is a deficient number, since it is larger than the sum of its proper divisors (20564131).

202110402401 is an equidigital number, since it uses as much as digits as its factorization.

202110402401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20564130.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202110402401 its reverse (104204011202), we get a palindrome (306314413603).

The spelling of 202110402401 in words is "two hundred two billion, one hundred ten million, four hundred two thousand, four hundred one".