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101122221212 = 22248471017449
BaseRepresentation
bin101111000101101011…
…0101010010010011100
3100200000101022002100022
41132023112222102130
53124044242034322
6114242132051312
710206621461315
oct1361326522234
9320011262308
10101122221212
1139981948551
1217721763b38
1396c717086c
144c7410560c
15296ca0e942
hex178b5aa49c

101122221212 has 12 divisors (see below), whose sum is σ = 176971183200. Its totient is φ = 50559026016.

The previous prime is 101122221119. The next prime is 101122221241. The reversal of 101122221212 is 212122221101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409337 + ... + 608112.

It is an arithmetic number, because the mean of its divisors is an integer number (14747598600).

Almost surely, 2101122221212 is an apocalyptic number.

It is an amenable number.

101122221212 is a deficient number, since it is larger than the sum of its proper divisors (75848961988).

101122221212 is a wasteful number, since it uses less digits than its factorization.

101122221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042300 (or 1042298 counting only the distinct ones).

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

Adding to 101122221212 its reverse (212122221101), we get a palindrome (313244442313).

The spelling of 101122221212 in words is "one hundred one billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 24847 49694 99388 1017449 2034898 4069796 25280555303 50561110606 101122221212