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10121122205 = 54347074987
BaseRepresentation
bin10010110110100010…
…00001000110011101
3222010100200021112222
421123101001012131
5131212001402310
64352150435125
7505545055625
oct113321010635
928110607488
1010121122205
114324122a07
121b65662aa5
13c53b1810c
146c0291885
153e3836055
hex25b44119d

10121122205 has 8 divisors (see below), whose sum is σ = 12427796832. Its totient is φ = 7908597648.

The previous prime is 10121122183. The next prime is 10121122213. The reversal of 10121122205 is 50222112101.

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

It is a cyclic number.

It is not a de Polignac number, because 10121122205 - 228 = 9852686749 is a prime.

It is a super-2 number, since 2×101211222052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 23537279 + ... + 23537708.

It is an arithmetic number, because the mean of its divisors is an integer number (1553474604).

Almost surely, 210121122205 is an apocalyptic number.

It is an amenable number.

10121122205 is a deficient number, since it is larger than the sum of its proper divisors (2306674627).

10121122205 is an equidigital number, since it uses as much as digits as its factorization.

10121122205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47075035.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10121122205 its reverse (50222112101), we get a palindrome (60343234306).

The spelling of 10121122205 in words is "ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred five".

Divisors: 1 5 43 215 47074987 235374935 2024224441 10121122205