2301220032221 has 16 divisors (see below), whose sum is σ = 2555216741376. Its totient is φ = 2054787000000.

The previous prime is 2301220032191. The next prime is 2301220032271. The reversal of 2301220032221 is 1222300221032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2301220032221 - 2⁶ = 2301220032157 is a prime.

It is a super-2 number, since 2×2301220032221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2301220032193 and 2301220032202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301220032271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975805 + ... + 2916546.

It is an arithmetic number, because the mean of its divisors is an integer number (159701046336).

Almost surely, 2^{2301220032221} is an apocalyptic number.

It is an amenable number.

2301220032221 is a deficient number, since it is larger than the sum of its proper divisors (253996709155).

2301220032221 is a wasteful number, since it uses less digits than its factorization.

2301220032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893124.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2301220032221 its reverse (1222300221032), we get a palindrome (3523520253253).

The spelling of 2301220032221 in words is "two trillion, three hundred one billion, two hundred twenty million, thirty-two thousand, two hundred twenty-one".