201212104 has 8 divisors (see below), whose sum is σ = 377272710. Its totient is φ = 100606048.

The previous prime is 201212101. The next prime is 201212107. The reversal of 201212104 is 401212102.

It is a happy number.

201212104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201212101) and next prime (201212107).

It can be written as a sum of positive squares in only one way, i.e., 197964900 + 3247204 = 14070^2 + 1802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×201212104² = 80972621592213632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201212101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12575749 + ... + 12575764.

Almost surely, 2^201212104 is an apocalyptic number.

It is an amenable number.

201212104 is a deficient number, since it is larger than the sum of its proper divisors (176060606).

201212104 is a wasteful number, since it uses less digits than its factorization.

201212104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25151519 (or 25151515 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 201212104 is about 14184.9252377304. The cubic root of 201212104 is about 585.9825735362.

Adding to 201212104 its reverse (401212102), we get a palindrome (602424206).

The spelling of 201212104 in words is "two hundred one million, two hundred twelve thousand, one hundred four".