212130132312121 has 8 divisors (see below), whose sum is σ = 213506382787488. Its totient is φ = 210758097000000.

The previous prime is 212130132312113. The next prime is 212130132312151. The reversal of 212130132312121 is 121213231031212.

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

It is a cyclic number.

It is not a de Polignac number, because 212130132312121 - 2³ = 212130132312113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212130132312101) 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, 1053689835 + ... + 1053891136.

It is an arithmetic number, because the mean of its divisors is an integer number (26688297848436).

Almost surely, 2^{212130132312121} is an apocalyptic number.

It is an amenable number.

212130132312121 is a deficient number, since it is larger than the sum of its proper divisors (1376250475367).

212130132312121 is a wasteful number, since it uses less digits than its factorization.

212130132312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107581623.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 212130132312121 its reverse (121213231031212), we get a palindrome (333343363343333).

The spelling of 212130132312121 in words is "two hundred twelve trillion, one hundred thirty billion, one hundred thirty-two million, three hundred twelve thousand, one hundred twenty-one".