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12122102210 = 254992429279
BaseRepresentation
bin10110100101000100…
…01001100111000010
31011021210212121002112
423102202021213002
5144311224232320
65322510415322
7606253111601
oct132242114702
934253777075
1012122102210
115160679899
122423801542
1311b254655a
1482dd23a38
154ae33dec5
hex2d28899c2

12122102210 has 16 divisors (see below), whose sum is σ = 21863520000. Its totient is φ = 4839121776.

The previous prime is 12122102203. The next prime is 12122102221. The reversal of 12122102210 is 1220122121.

Adding to 12122102210 its reverse (1220122121), we get a palindrome (13342224331).

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, 1209650 + ... + 1219629.

It is an arithmetic number, because the mean of its divisors is an integer number (1366470000).

Almost surely, 212122102210 is an apocalyptic number.

12122102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122102210 is a deficient number, since it is larger than the sum of its proper divisors (9741417790).

12122102210 is a wasteful number, since it uses less digits than its factorization.

12122102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429785.

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

The spelling of 12122102210 in words is "twelve billion, one hundred twenty-two million, one hundred two thousand, two hundred ten".

Divisors: 1 2 5 10 499 998 2495 4990 2429279 4858558 12146395 24292790 1212210221 2424420442 6061051105 12122102210