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10212232220 = 2253135712857
BaseRepresentation
bin10011000001011001…
…00100110000011100
3222100201010010222222
421200230210300130
5131403312412340
64405203324512
7511032353531
oct114054446034
928321103888
1010212232220
1143705a2243
121b90080738
13c69968378
146cc40ad88
153eb8318b5
hex260b24c1c

10212232220 has 48 divisors (see below), whose sum is σ = 21559425888. Its totient is φ = 4063288320.

The previous prime is 10212232213. The next prime is 10212232229. The reversal of 10212232220 is 2223221201.

It is a super-2 number, since 2×102122322202 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212232229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3573032 + ... + 3575888.

It is an arithmetic number, because the mean of its divisors is an integer number (449154706).

Almost surely, 210212232220 is an apocalyptic number.

10212232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212232220 is an abundant number, since it is smaller than the sum of its proper divisors (11347193668).

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

10212232220 is a wasteful number, since it uses less digits than its factorization.

10212232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3748 counting only the distinct ones).

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

Adding to 10212232220 its reverse (2223221201), we get a palindrome (12435453421).

The spelling of 10212232220 in words is "ten billion, two hundred twelve million, two hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 313 571 626 1142 1252 1565 2284 2855 2857 3130 5710 5714 6260 11420 11428 14285 28570 57140 178723 357446 714892 893615 894241 1631347 1787230 1788482 3262694 3574460 3576964 4471205 6525388 8156735 8942410 16313470 17884820 32626940 510611611 1021223222 2042446444 2553058055 5106116110 10212232220