213132211202121 has 16 divisors (see below), whose sum is σ = 287927585994048. Its totient is φ = 140224473604800.

The previous prime is 213132211202087. The next prime is 213132211202123. The reversal of 213132211202121 is 121202112231312.

It is not a de Polignac number, because 213132211202121 - 2⁷ = 213132211201993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213132211202091 and 213132211202100.

It is not an unprimeable number, because it can be changed into a prime (213132211202123) 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, 1498053586 + ... + 1498195851.

It is an arithmetic number, because the mean of its divisors is an integer number (17995474124628).

Almost surely, 2^{213132211202121} is an apocalyptic number.

It is an amenable number.

213132211202121 is a deficient number, since it is larger than the sum of its proper divisors (74795374791927).

213132211202121 is a wasteful number, since it uses less digits than its factorization.

213132211202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996249752.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 213132211202121 its reverse (121202112231312), we get a palindrome (334334323433433).

The spelling of 213132211202121 in words is "two hundred thirteen trillion, one hundred thirty-two billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".