2121203000001 has 8 divisors (see below), whose sum is σ = 2856273346944. Its totient is φ = 1400133993200.

The previous prime is 2121202999999. The next prime is 2121203000009. The reversal of 2121203000001 is 1000003021212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121203000001 - 2¹ = 2121202999999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121203000009) 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, 3500334681 + ... + 3500335286.

It is an arithmetic number, because the mean of its divisors is an integer number (357034168368).

Almost surely, 2^{2121203000001} is an apocalyptic number.

It is an amenable number.

2121203000001 is a deficient number, since it is larger than the sum of its proper divisors (735070346943).

2121203000001 is a wasteful number, since it uses less digits than its factorization.

2121203000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000670071.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 2121203000001 its reverse (1000003021212), we get a palindrome (3121206021213).

The spelling of 2121203000001 in words is "two trillion, one hundred twenty-one billion, two hundred three million, one", and thus it is an aban number.