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10122210221111 = 281187919170889
BaseRepresentation
bin1001001101001100001010…
…1111101001110000110111
31022211200012020022201200222
42103103002233221300313
52311320241304033421
633310025034124555
72063206543156112
oct223230257516067
938750166281628
1010122210221111
113252894869a5a
12117590388075b
1358569c212621
1426dcbbc13579
1512847de83cab
hex934c2be9c37

10122210221111 has 8 divisors (see below), whose sum is σ = 10163639042400. Its totient is φ = 10080819745920.

The previous prime is 10122210221017. The next prime is 10122210221119. The reversal of 10122210221111 is 11112201222101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10122210221111 is a prime.

It is a super-4 number, since 4×101222102211114 (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10122210221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122210221119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9057446 + ... + 10113443.

It is an arithmetic number, because the mean of its divisors is an integer number (1270454880300).

Almost surely, 210122210221111 is an apocalyptic number.

10122210221111 is a deficient number, since it is larger than the sum of its proper divisors (41428821289).

10122210221111 is a wasteful number, since it uses less digits than its factorization.

10122210221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19173049.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10122210221111 its reverse (11112201222101), we get a palindrome (21234411443212).

The spelling of 10122210221111 in words is "ten trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-one thousand, one hundred eleven".

Divisors: 1 281 1879 527999 19170889 5387019809 36022100431 10122210221111