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12210212210 = 257174431603
BaseRepresentation
bin10110101111100100…
…10000110101110010
31011111221200001021212
423113302100311302
5200001303242320
65335335120122
7611403043220
oct132762206562
934457601255
1012210212210
1151a638a179
122449213042
1311c7886151
1483b8dbb10
154b6e459c5
hex2d7c90d72

12210212210 has 16 divisors (see below), whose sum is σ = 25118150976. Its totient is φ = 4186358448.

The previous prime is 12210212197. The next prime is 12210212227. The reversal of 12210212210 is 1221201221.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 87215732 + ... + 87215871.

It is an arithmetic number, because the mean of its divisors is an integer number (1569884436).

Almost surely, 212210212210 is an apocalyptic number.

12210212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210212210 is an abundant number, since it is smaller than the sum of its proper divisors (12907938766).

12210212210 is a wasteful number, since it uses less digits than its factorization.

12210212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174431617.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210212210 its reverse (1221201221), we get a palindrome (13431413431).

The spelling of 12210212210 in words is "twelve billion, two hundred ten million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 174431603 348863206 872158015 1221021221 1744316030 2442042442 6105106105 12210212210