220201011202221 has 24 divisors (see below), whose sum is σ = 363521473897920. Its totient is φ = 125823942167616.

The previous prime is 220201011202171. The next prime is 220201011202343. The reversal of 220201011202221 is 122202110102022.

It is a happy number.

220201011202221 is a `hidden beast` number, since 220 + 2 + 0 + 10 + 11 + 202 + 221 = 666.

It is not a de Polignac number, because 220201011202221 - 2¹⁹ = 220201010677933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220201011202194 and 220201011202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201011202421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70785975 + ... + 73831268.

It is an arithmetic number, because the mean of its divisors is an integer number (15146728079080).

Almost surely, 2^{220201011202221} is an apocalyptic number.

220201011202221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220201011202221 is a deficient number, since it is larger than the sum of its proper divisors (143320462695699).

220201011202221 is a wasteful number, since it uses less digits than its factorization.

220201011202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144641425 (or 144641422 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220201011202221 its reverse (122202110102022), we get a palindrome (342403121304243).

The spelling of 220201011202221 in words is "two hundred twenty trillion, two hundred one billion, eleven million, two hundred two thousand, two hundred twenty-one".