233020212102221 has 4 divisors (see below), whose sum is σ = 233190673121952. Its totient is φ = 232849751082492.

The previous prime is 233020212102179. The next prime is 233020212102239. The reversal of 233020212102221 is 122201212020332.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 233020212102221 - 2²² = 233020207907917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233020212102241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85230507815 + ... + 85230510548.

It is an arithmetic number, because the mean of its divisors is an integer number (58297668280488).

Almost surely, 2^{233020212102221} is an apocalyptic number.

It is an amenable number.

233020212102221 is a deficient number, since it is larger than the sum of its proper divisors (170461019731).

233020212102221 is a wasteful number, since it uses less digits than its factorization.

233020212102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170461019730.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 233020212102221 its reverse (122201212020332), we get a palindrome (355221424122553).

The spelling of 233020212102221 in words is "two hundred thirty-three trillion, twenty billion, two hundred twelve million, one hundred two thousand, two hundred twenty-one".