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202010222210221 = 1679471369793257
BaseRepresentation
bin101101111011101000101011…
…100010010010110010101101
3222111020222200201100222210001
4231323220223202102302231
5202434213413341211341
61553350114231544301
760356520424214665
oct5573505342226255
9874228621328701
10202010222210221
1159404066050a57
121a7a6b2682b091
138894636573149
1437c54bdd5b1a5
151854b396bed31
hexb7ba2b892cad

202010222210221 has 16 divisors (see below), whose sum is σ = 203451491650176. Its totient is φ = 200571746062336.

The previous prime is 202010222210197. The next prime is 202010222210243. The reversal of 202010222210221 is 122012222010202.

It is a cyclic number.

It is not a de Polignac number, because 202010222210221 - 225 = 202010188655789 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 (202010222210021) 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, 2166120225 + ... + 2166213481.

It is an arithmetic number, because the mean of its divisors is an integer number (12715718228136).

Almost surely, 2202010222210221 is an apocalyptic number.

It is an amenable number.

202010222210221 is a deficient number, since it is larger than the sum of its proper divisors (1441269439955).

202010222210221 is a wasteful number, since it uses less digits than its factorization.

202010222210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108068.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202010222210221 its reverse (122012222010202), we get a palindrome (324022444220423).

The spelling of 202010222210221 in words is "two hundred two trillion, ten billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 167 947 13697 93257 158149 2287399 12971059 15573919 88314379 1277341129 2166166853 14748501293 213315968543 1209642049163 202010222210221