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1220210101112 = 231213353335591
BaseRepresentation
bin10001110000011010001…
…100001000101101111000
311022122120112120121202212
4101300122030020231320
5124442442241213422
62332320133114252
7154104641504432
oct21603214105570
94278515517685
101220210101112
114305408781a2
12178599a88988
138b0b0675512
14430b66a1652
1521b191089e2
hex11c1a308b78

1220210101112 has 32 divisors (see below), whose sum is σ = 2290492550880. Its totient is φ = 609412410240.

The previous prime is 1220210101109. The next prime is 1220210101153. The reversal of 1220210101112 is 2111010120221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34266437 + ... + 34302027.

It is an arithmetic number, because the mean of its divisors is an integer number (71577892215).

Almost surely, 21220210101112 is an apocalyptic number.

It is an amenable number.

1220210101112 is a deficient number, since it is larger than the sum of its proper divisors (1070282449768).

1220210101112 is a wasteful number, since it uses less digits than its factorization.

1220210101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40343 (or 40339 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220210101112 its reverse (2111010120221), we get a palindrome (3331220221333).

The spelling of 1220210101112 in words is "one trillion, two hundred twenty billion, two hundred ten million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 4 8 1213 2426 3533 4852 7066 9704 14132 28264 35591 71182 142364 284728 4285529 8571058 17142116 34284232 43171883 86343766 125743003 172687532 251486006 345375064 502972012 1005944024 152526262639 305052525278 610105050556 1220210101112