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12122102012210 = 2511278710747783
BaseRepresentation
bin1011000001100110010110…
…0101011001100100110010
31120220212021010112222221222
42300121211211121210302
53042102031103342320
641440452231545042
72360535663002261
oct260314545314462
946825233488858
1012122102012210
113953a556218a3
12143941752b182
1369c15621a958
142dc9da1765d8
151604cc6d9825
hexb0665959932

12122102012210 has 16 divisors (see below), whose sum is σ = 21819979112256. Its totient is φ = 4848797362608.

The previous prime is 12122102012191. The next prime is 12122102012231. The reversal of 12122102012210 is 1221020122121.

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, 4246022 + ... + 6501761.

It is an arithmetic number, because the mean of its divisors is an integer number (1363748694516).

Almost surely, 212122102012210 is an apocalyptic number.

12122102012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122102012210 is a deficient number, since it is larger than the sum of its proper divisors (9697877100046).

12122102012210 is a wasteful number, since it uses less digits than its factorization.

12122102012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10860577.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12122102012210 its reverse (1221020122121), we get a palindrome (13343122134331).

The spelling of 12122102012210 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 112787 225574 563935 1127870 10747783 21495566 53738915 107477830 1212210201221 2424420402442 6061051006105 12122102012210