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201211201210 = 2531649068391
BaseRepresentation
bin1011101101100100011…
…1110100011010111010
3201020100202101002012111
42323121013310122322
511244040031414320
6232233554202534
720352125663605
oct2733107643272
9636322332174
10201211201210
1178373528638
1232bb528344a
1315c88235b96
149a4acc933c
155379973a5a
hex2ed91f46ba

201211201210 has 16 divisors (see below), whose sum is σ = 373863393792. Its totient is φ = 77888206800.

The previous prime is 201211201183. The next prime is 201211201267. The reversal of 201211201210 is 12102112102.

It is a super-2 number, since 2×2012112012102 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324533886 + ... + 324534505.

It is an arithmetic number, because the mean of its divisors is an integer number (23366462112).

Almost surely, 2201211201210 is an apocalyptic number.

201211201210 is a deficient number, since it is larger than the sum of its proper divisors (172652192582).

201211201210 is a wasteful number, since it uses less digits than its factorization.

201211201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649068429.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201211201210 its reverse (12102112102), we get a palindrome (213313313312).

The spelling of 201211201210 in words is "two hundred one billion, two hundred eleven million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 31 62 155 310 649068391 1298136782 3245341955 6490683910 20121120121 40242240242 100605600605 201211201210