213001210121 has 8 divisors (see below), whose sum is σ = 248022972864. Its totient is φ = 179127702000.

The previous prime is 213001210069. The next prime is 213001210129. The reversal of 213001210121 is 121012100312.

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 213001210121 - 2³⁰ = 211927468297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213001210096 and 213001210105.

It is not an unprimeable number, because it can be changed into a prime (213001210129) 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, 287063255 + ... + 287063996.

It is an arithmetic number, because the mean of its divisors is an integer number (31002871608).

Almost surely, 2^213001210121 is an apocalyptic number.

It is an amenable number.

213001210121 is a deficient number, since it is larger than the sum of its proper divisors (35021762743).

213001210121 is an equidigital number, since it uses as much as digits as its factorization.

213001210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574127311.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 213001210121 its reverse (121012100312), we get a palindrome (334013310433).

The spelling of 213001210121 in words is "two hundred thirteen billion, one million, two hundred ten thousand, one hundred twenty-one".