3121212201 has 8 divisors (see below), whose sum is σ = 4177440960. Its totient is φ = 2072895792.

The previous prime is 3121212179. The next prime is 3121212221. The reversal of 3121212201 is 1022121213.

3121212201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3121212201 - 2⁵ = 3121212169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121212221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977166 + ... + 1978743.

It is an arithmetic number, because the mean of its divisors is an integer number (522180120).

Almost surely, 2^3121212201 is an apocalyptic number.

It is an amenable number.

3121212201 is a deficient number, since it is larger than the sum of its proper divisors (1056228759).

3121212201 is a wasteful number, since it uses less digits than its factorization.

3121212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956175.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3121212201 is about 55867.8100608928. The cubic root of 3121212201 is about 1461.4179320732.

Adding to 3121212201 its reverse (1022121213), we get a palindrome (4143333414).

The spelling of 3121212201 in words is "three billion, one hundred twenty-one million, two hundred twelve thousand, two hundred one".