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11112120222 = 237499530209
BaseRepresentation
bin10100101100101010…
…10111111110011110
31001200102102012021020
422112111113332132
5140224200321342
65034351145010
7542240314650
oct122625277636
931612365236
1011112120222
114792558435
1221a1515166
131081222a88
14775b386d0
1545083a0ec
hex296557f9e

11112120222 has 32 divisors (see below), whose sum is σ = 25450080000. Its totient is φ = 3168523008.

The previous prime is 11112120209. The next prime is 11112120233. The reversal of 11112120222 is 22202121111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244147 + ... + 286062.

It is an arithmetic number, because the mean of its divisors is an integer number (795315000).

Almost surely, 211112120222 is an apocalyptic number.

11112120222 is an abundant number, since it is smaller than the sum of its proper divisors (14337959778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11112120222 is a wasteful number, since it uses less digits than its factorization.

11112120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530720.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11112120222 its reverse (22202121111), we get a palindrome (33314241333).

The spelling of 11112120222 in words is "eleven billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 499 998 1497 2994 3493 6986 10479 20958 530209 1060418 1590627 3181254 3711463 7422926 11134389 22268778 264574291 529148582 793722873 1587445746 1852020037 3704040074 5556060111 11112120222