30102201 has 12 divisors (see below), whose sum is σ = 44656612. Its totient is φ = 19525536.

The previous prime is 30102199. The next prime is 30102211. The reversal of 30102201 is 10220103.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11048976 + 19053225 = 3324^2 + 4365^2 .

It is not a de Polignac number, because 30102201 - 2¹ = 30102199 is a prime.

It is a super-2 number, since 2×30102201² = 1812285010088802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30102211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44866 + ... + 45531.

Almost surely, 2^30102201 is an apocalyptic number.

It is an amenable number.

30102201 is a deficient number, since it is larger than the sum of its proper divisors (14554411).

30102201 is a wasteful number, since it uses less digits than its factorization.

30102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90440 (or 90437 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 30102201 is about 5486.5472749262. The cubic root of 30102201 is about 311.0756976367.

Adding to 30102201 its reverse (10220103), we get a palindrome (40322304).

It can be divided in two parts, 30102 and 201, that added together give a palindrome (30303).

The spelling of 30102201 in words is "thirty million, one hundred two thousand, two hundred one".