2121211020103 has 8 divisors (see below), whose sum is σ = 2424265845408. Its totient is φ = 1818162364704.

The previous prime is 2121211020101. The next prime is 2121211020119. The reversal of 2121211020103 is 3010201121212.

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

It is not a de Polignac number, because 2121211020103 - 2¹ = 2121211020101 is a prime.

It is a super-3 number, since 3×2121211020103³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121211020101) 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, 780676 + ... + 2202697.

It is an arithmetic number, because the mean of its divisors is an integer number (303033230676).

Almost surely, 2^{2121211020103} is an apocalyptic number.

2121211020103 is a deficient number, since it is larger than the sum of its proper divisors (303054825305).

2121211020103 is a wasteful number, since it uses less digits than its factorization.

2121211020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084953.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2121211020103 its reverse (3010201121212), we get a palindrome (5131412141315).

The spelling of 2121211020103 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, twenty thousand, one hundred three".