213220121301 has 12 divisors (see below), whose sum is σ = 335983221600. Its totient is φ = 129224315880.

The previous prime is 213220121291. The next prime is 213220121327. The reversal of 213220121301 is 103121022312.

213220121301 is a `hidden beast` number, since 21 + 3 + 220 + 121 + 301 = 666.

It is not a de Polignac number, because 213220121301 - 2⁵ = 213220121269 is a prime.

It is a super-3 number, since 3×213220121301³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213220121801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1076869201 + ... + 1076869398.

It is an arithmetic number, because the mean of its divisors is an integer number (27998601800).

Almost surely, 2^213220121301 is an apocalyptic number.

It is an amenable number.

213220121301 is a deficient number, since it is larger than the sum of its proper divisors (122763100299).

213220121301 is a wasteful number, since it uses less digits than its factorization.

213220121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153738616 (or 2153738613 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213220121301 its reverse (103121022312), we get a palindrome (316341143613).

The spelling of 213220121301 in words is "two hundred thirteen billion, two hundred twenty million, one hundred twenty-one thousand, three hundred one".