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10231212212 = 2213353557377
BaseRepresentation
bin10011000011101001…
…11110100010110100
3222102000211102122122
421201310332202310
5131423142242322
64411122215112
7511352604014
oct114164764264
928360742578
1010231212212
114380286191
121b964b4498
13c70882430
146d0b4bc44
153ed330442
hex261d3e8b4

10231212212 has 24 divisors (see below), whose sum is σ = 19336557576. Its totient is φ = 4708712448.

The previous prime is 10231212203. The next prime is 10231212241. The reversal of 10231212212 is 21221213201.

10231212212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 698896 + 10230513316 = 836^2 + 101146^2 .

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, 260333 + ... + 297044.

It is an arithmetic number, because the mean of its divisors is an integer number (805689899).

Almost surely, 210231212212 is an apocalyptic number.

It is an amenable number.

10231212212 is a deficient number, since it is larger than the sum of its proper divisors (9105345364).

10231212212 is a wasteful number, since it uses less digits than its factorization.

10231212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557747 (or 557745 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10231212212 its reverse (21221213201), we get a palindrome (31452425413).

The spelling of 10231212212 in words is "ten billion, two hundred thirty-one million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 353 706 1412 4589 9178 18356 557377 1114754 2229508 7245901 14491802 28983604 196754081 393508162 787016324 2557803053 5115606106 10231212212