262201021 has 2 divisors, whose sum is σ = 262201022. Its totient is φ = 262201020.

The previous prime is 262200973. The next prime is 262201033. The reversal of 262201021 is 120102262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258244900 + 3956121 = 16070^2 + 1989^2 .

It is a cyclic number.

It is not a de Polignac number, because 262201021 - 2¹³ = 262192829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 262200986 and 262201004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (262201061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131100510 + 131100511.

It is an arithmetic number, because the mean of its divisors is an integer number (131100511).

Almost surely, 2^262201021 is an apocalyptic number.

It is an amenable number.

262201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

262201021 is an equidigital number, since it uses as much as digits as its factorization.

262201021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 262201021 is about 16192.6224250428. The cubic root of 262201021 is about 640.0464004444.

Adding to 262201021 its reverse (120102262), we get a palindrome (382303283).

The spelling of 262201021 in words is "two hundred sixty-two million, two hundred one thousand, twenty-one".