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122210023220 = 22547130010663
BaseRepresentation
bin111000111010001001…
…0001111011100110100
3102200110000201102102022
41301310102033130310
54000241231220340
6132050440532312
711554323025535
oct1616422173464
9380400642368
10122210023220
114791341029a
121b827a81098
13b6a801800c
145cb4a7268c
1532a40023b5
hex1c7448f734

122210023220 has 24 divisors (see below), whose sum is σ = 262101498624. Its totient is φ = 47843923616.

The previous prime is 122210023171. The next prime is 122210023223. The reversal of 122210023220 is 22320012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210023223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65004392 + ... + 65006271.

It is an arithmetic number, because the mean of its divisors is an integer number (10920895776).

Almost surely, 2122210023220 is an apocalyptic number.

122210023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122210023220 is an abundant number, since it is smaller than the sum of its proper divisors (139891475404).

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

122210023220 is a wasteful number, since it uses less digits than its factorization.

122210023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130010719 (or 130010717 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 122210023220 its reverse (22320012221), we get a palindrome (144530035441).

The spelling of 122210023220 in words is "one hundred twenty-two billion, two hundred ten million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 130010663 260021326 520042652 650053315 1300106630 2600213260 6110501161 12221002322 24442004644 30552505805 61105011610 122210023220