232021030101221 has 4 divisors (see below), whose sum is σ = 232528734762732. Its totient is φ = 231513325439712.

The previous prime is 232021030101197. The next prime is 232021030101271. The reversal of 232021030101221 is 122101030120232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167939179948225 + 64081850152996 = 12959135^2 + 8005114^2 .

It is a cyclic number.

It is not a de Polignac number, because 232021030101221 - 2¹⁸ = 232021029839077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232021030101193 and 232021030101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232021030101271) 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, 253852330070 + ... + 253852330983.

It is an arithmetic number, because the mean of its divisors is an integer number (58132183690683).

Almost surely, 2^{232021030101221} is an apocalyptic number.

It is an amenable number.

232021030101221 is a deficient number, since it is larger than the sum of its proper divisors (507704661511).

232021030101221 is an equidigital number, since it uses as much as digits as its factorization.

232021030101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507704661510.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 232021030101221 its reverse (122101030120232), we get a palindrome (354122060221453).

The spelling of 232021030101221 in words is "two hundred thirty-two trillion, twenty-one billion, thirty million, one hundred one thousand, two hundred twenty-one".