2121130302001 has 6 divisors (see below), whose sum is σ = 2123174858802. Its totient is φ = 2119087712160.

The previous prime is 2121130301989. The next prime is 2121130302013. The reversal of 2121130302001 is 1002030311212.

It is an interprime number because it is at equal distance from previous prime (2121130301989) and next prime (2121130302013).

It can be written as a sum of positive squares in only one way, i.e., 2070764170225 + 50366131776 = 1439015^2 + 224424^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2121130302001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121130302041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97081 + ... + 2061961.

It is an arithmetic number, because the mean of its divisors is an integer number (353862476467).

Almost surely, 2^{2121130302001} is an apocalyptic number.

It is an amenable number.

2121130302001 is a deficient number, since it is larger than the sum of its proper divisors (2044556801).

2121130302001 is an frugal number, since it uses more digits than its factorization.

2121130302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966959 (or 1965920 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2121130302001 its reverse (1002030311212), we get a palindrome (3123160613213).

The spelling of 2121130302001 in words is "two trillion, one hundred twenty-one billion, one hundred thirty million, three hundred two thousand, one".