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220210202221 = 29157424311399
BaseRepresentation
bin1100110100010110001…
…1010000011001101101
3210001101211100022222121
43031011203100121231
512101442302432341
6245055124512541
721624004556242
oct3150543203155
9701354308877
10220210202221
1185432a11269
1236817b4b751
13179c5413a09
14a9302835c9
155adc8b24d1
hex33458d066d

220210202221 has 16 divisors (see below), whose sum is σ = 229328784000. Its totient is φ = 211194180288.

The previous prime is 220210202213. The next prime is 220210202257. The reversal of 220210202221 is 122202012022.

It is a cyclic number.

It is not a de Polignac number, because 220210202221 - 23 = 220210202213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220210202195 and 220210202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220210202021) 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, 19312680 + ... + 19324078.

It is an arithmetic number, because the mean of its divisors is an integer number (14333049000).

Almost surely, 2220210202221 is an apocalyptic number.

It is an amenable number.

220210202221 is a deficient number, since it is larger than the sum of its proper divisors (9118581779).

220210202221 is a wasteful number, since it uses less digits than its factorization.

220210202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15828.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220210202221 its reverse (122202012022), we get a palindrome (342412214243).

The spelling of 220210202221 in words is "two hundred twenty billion, two hundred ten million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 29 157 4243 4553 11399 123047 330571 666151 1789643 19318379 48365957 51899647 1402612753 7593455249 220210202221