7301212212121 has 12 divisors (see below), whose sum is σ = 7562766238144. Its totient is φ = 7048414724400.

The previous prime is 7301212212109. The next prime is 7301212212139. The reversal of 7301212212121 is 1212122121037.

It is not a de Polignac number, because 7301212212121 - 2²¹ = 7301210114969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7301212212821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5146756 + ... + 6410266.

Almost surely, 2^{7301212212121} is an apocalyptic number.

It is an amenable number.

7301212212121 is a deficient number, since it is larger than the sum of its proper divisors (261554026023).

7301212212121 is a wasteful number, since it uses less digits than its factorization.

7301212212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270440 (or 1270411 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 7301212212121 its reverse (1212122121037), we get a palindrome (8513334333158).

The spelling of 7301212212121 in words is "seven trillion, three hundred one billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-one".