210422220401 has 4 divisors (see below), whose sum is σ = 210427121892. Its totient is φ = 210417318912.

The previous prime is 210422220397. The next prime is 210422220409. The reversal of 210422220401 is 104022224012.

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 202635922801 + 7786297600 = 450151^2 + 88240^2 .

It is a cyclic number.

It is not a de Polignac number, because 210422220401 - 2² = 210422220397 is a prime.

It is a super-3 number, since 3×210422220401³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210422220409) 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, 2385776 + ... + 2472401.

It is an arithmetic number, because the mean of its divisors is an integer number (52606780473).

Almost surely, 2^210422220401 is an apocalyptic number.

It is an amenable number.

210422220401 is a deficient number, since it is larger than the sum of its proper divisors (4901491).

210422220401 is an equidigital number, since it uses as much as digits as its factorization.

210422220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901490.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 210422220401 its reverse (104022224012), we get a palindrome (314444444413).

The spelling of 210422220401 in words is "two hundred ten billion, four hundred twenty-two million, two hundred twenty thousand, four hundred one".