2103221300121 has 24 divisors (see below), whose sum is σ = 3195155448576. Its totient is φ = 1331314751520.

The previous prime is 2103221300087. The next prime is 2103221300171. The reversal of 2103221300121 is 1210031223012.

2103221300121 is a `hidden beast` number, since 21 + 0 + 3 + 221 + 300 + 121 = 666.

It is not a de Polignac number, because 2103221300121 - 2¹⁰ = 2103221299097 is a prime.

It is a super-2 number, since 2×2103221300121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2103221300094 and 2103221300103.

It is not an unprimeable number, because it can be changed into a prime (2103221300171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71102455 + ... + 71132028.

It is an arithmetic number, because the mean of its divisors is an integer number (133131477024).

Almost surely, 2^{2103221300121} is an apocalyptic number.

It is an amenable number.

2103221300121 is a deficient number, since it is larger than the sum of its proper divisors (1091934148455).

2103221300121 is a wasteful number, since it uses less digits than its factorization.

2103221300121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142234573 (or 142234570 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2103221300121 its reverse (1210031223012), we get a palindrome (3313252523133).

The spelling of 2103221300121 in words is "two trillion, one hundred three billion, two hundred twenty-one million, three hundred thousand, one hundred twenty-one".