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10212122011 = 713173648677
BaseRepresentation
bin10011000001011000…
…01001110110011011
3222100200220112211011
421200230021312123
5131403300401021
64405201114351
7511031414320
oct114054116633
928320815734
1010212122011
114370527463
121b900289b7
13c6992a160
146cc3bcb47
153eb80dde1
hex260b09d9b

10212122011 has 16 divisors (see below), whose sum is σ = 12641436864. Its totient is φ = 8033203584.

The previous prime is 10212122009. The next prime is 10212122023. The reversal of 10212122011 is 11022121201.

It is not a de Polignac number, because 10212122011 - 21 = 10212122009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10212121982 and 10212122000.

It is not an unprimeable number, because it can be changed into a prime (10212182011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308596 + ... + 340081.

It is an arithmetic number, because the mean of its divisors is an integer number (790089804).

Almost surely, 210212122011 is an apocalyptic number.

10212122011 is a deficient number, since it is larger than the sum of its proper divisors (2429314853).

10212122011 is a wasteful number, since it uses less digits than its factorization.

10212122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648870.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10212122011 its reverse (11022121201), we get a palindrome (21234243212).

The spelling of 10212122011 in words is "ten billion, two hundred twelve million, one hundred twenty-two thousand, eleven".

Divisors: 1 7 13 91 173 1211 2249 15743 648677 4540739 8432801 59029607 112221121 785547847 1458874573 10212122011