212120102001 has 8 divisors (see below), whose sum is σ = 282853221280. Its totient is φ = 141400192032.

The previous prime is 212120101993. The next prime is 212120102009. The reversal of 212120102001 is 100201021212.

It is an interprime number because it is at equal distance from previous prime (212120101993) and next prime (212120102009).

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

It is not a de Polignac number, because 212120102001 - 2³ = 212120101993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212120102009) 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, 3264796 + ... + 3329133.

It is an arithmetic number, because the mean of its divisors is an integer number (35356652660).

Almost surely, 2^212120102001 is an apocalyptic number.

It is an amenable number.

212120102001 is a deficient number, since it is larger than the sum of its proper divisors (70733119279).

212120102001 is a wasteful number, since it uses less digits than its factorization.

212120102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604655.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212120102001 its reverse (100201021212), we get a palindrome (312321123213).

The spelling of 212120102001 in words is "two hundred twelve billion, one hundred twenty million, one hundred two thousand, one".