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122121005050 = 252111489149119
BaseRepresentation
bin111000110111011111…
…0101010011111111010
3102200012211012211110001
41301232332222133322
54000100434130200
6132033540543214
711552162262412
oct1615676523772
9380184184401
10122121005050
114787813a660
121b8020b1b0a
13b69274ac45
145ca6cdd642
15329b2bb76a
hex1c6efaa7fa

122121005050 has 48 divisors (see below), whose sum is σ = 247962700800. Its totient is φ = 44377516800.

The previous prime is 122121005003. The next prime is 122121005051. The reversal of 122121005050 is 50500121221.

It is not an unprimeable number, because it can be changed into a prime (122121005051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 744391 + ... + 893509.

It is an arithmetic number, because the mean of its divisors is an integer number (5165889600).

Almost surely, 2122121005050 is an apocalyptic number.

122121005050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121005050 is an abundant number, since it is smaller than the sum of its proper divisors (125841695750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122121005050 is a wasteful number, since it uses less digits than its factorization.

122121005050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150631 (or 150626 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 122121005050 its reverse (50500121221), we get a palindrome (172621126271).

The spelling of 122121005050 in words is "one hundred twenty-two billion, one hundred twenty-one million, five thousand, fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 1489 2978 7445 14890 16379 32758 37225 74450 81895 149119 163790 298238 409475 745595 818950 1491190 1640309 3280618 3727975 7455950 8201545 16403090 41007725 82015450 222038191 444076382 1110190955 2220381910 2442420101 4884840202 5550954775 11101909550 12212100505 24424201010 61060502525 122121005050