342212252521 has 16 divisors (see below), whose sum is σ = 350601410880. Its totient is φ = 333932811520.

The previous prime is 342212252513. The next prime is 342212252527. The reversal of 342212252521 is 125252212243.

It is a cyclic number.

It is not a de Polignac number, because 342212252521 - 2³ = 342212252513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342212252527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7015506 + ... + 7064116.

It is an arithmetic number, because the mean of its divisors is an integer number (21912588180).

Almost surely, 2^342212252521 is an apocalyptic number.

It is an amenable number.

342212252521 is a deficient number, since it is larger than the sum of its proper divisors (8389158359).

342212252521 is an equidigital number, since it uses as much as digits as its factorization.

342212252521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49736.

The product of its digits is 19200, while the sum is 31.

Adding to 342212252521 its reverse (125252212243), we get a palindrome (467464464764).

The spelling of 342212252521 in words is "three hundred forty-two billion, two hundred twelve million, two hundred fifty-two thousand, five hundred twenty-one".