213002121121 has 8 divisors (see below), whose sum is σ = 213367846464. Its totient is φ = 212636486160.

The previous prime is 213002121091. The next prime is 213002121127. The reversal of 213002121121 is 121121200312.

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 213002121121 - 2¹³ = 213002112929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213002121095 and 213002121104.

It is not an unprimeable number, because it can be changed into a prime (213002121127) 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, 6088746 + ... + 6123628.

It is an arithmetic number, because the mean of its divisors is an integer number (26670980808).

Almost surely, 2^213002121121 is an apocalyptic number.

It is an amenable number.

213002121121 is a deficient number, since it is larger than the sum of its proper divisors (365725343).

213002121121 is an equidigital number, since it uses as much as digits as its factorization.

213002121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45191.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 213002121121 its reverse (121121200312), we get a palindrome (334123321433).

The spelling of 213002121121 in words is "two hundred thirteen billion, two million, one hundred twenty-one thousand, one hundred twenty-one".