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202001022021212 = 2285958789587317
BaseRepresentation
bin101101111011100000000111…
…001010010110111001011100
3222111020002221112120222001222
4231323200013022112321130
5202434041043114134322
61553341553255552512
760356043431001341
oct5573400712267134
9874202845528058
10202001022021212
1159400174858867
121a7a519968b738
1388937cb4a081b
1437c4c8a1147c8
15185479bb4ce42
hexb7b807296e5c

202001022021212 has 12 divisors (see below), whose sum is σ = 353913315654360. Its totient is φ = 100882931834256.

The previous prime is 202001022021143. The next prime is 202001022021217. The reversal of 202001022021212 is 212120220100202.

It is a happy number.

It is a super-2 number, since 2×2020010220212122 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001022021217) 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, 29394790223 + ... + 29394797094.

It is an arithmetic number, because the mean of its divisors is an integer number (29492776304530).

Almost surely, 2202001022021212 is an apocalyptic number.

It is an amenable number.

202001022021212 is a deficient number, since it is larger than the sum of its proper divisors (151912293633148).

202001022021212 is a wasteful number, since it uses less digits than its factorization.

202001022021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58789588180 (or 58789588178 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202001022021212 its reverse (212120220100202), we get a palindrome (414121242121414).

The spelling of 202001022021212 in words is "two hundred two trillion, one billion, twenty-two million, twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 859 1718 3436 58789587317 117579174634 235158349268 50500255505303 101000511010606 202001022021212