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1220001233230 = 251333138374027
BaseRepresentation
bin10001110000001101101…
…111010111100101001110
311022122000222120000220101
4101300031233113211032
5124442030303430410
62332243312241314
7154066524244243
oct21601557274516
94278028500811
101220001233230
1143044398870a
1217853bb4023a
138b079304a60
1443096a515ca
1521b05aebd3a
hex11c0dbd794e

1220001233230 has 64 divisors (see below), whose sum is σ = 2378295779328. Its totient is φ = 447922442880.

The previous prime is 1220001233179. The next prime is 1220001233233. The reversal of 1220001233230 is 323321000221.

It is a junction number, because it is equal to n+sod(n) for n = 1220001233198 and 1220001233207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220001233233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16443477 + ... + 16517503.

It is an arithmetic number, because the mean of its divisors is an integer number (37160871552).

Almost surely, 21220001233230 is an apocalyptic number.

1220001233230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220001233230 is a deficient number, since it is larger than the sum of its proper divisors (1158294546098).

1220001233230 is a wasteful number, since it uses less digits than its factorization.

1220001233230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74761.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1220001233230 its reverse (323321000221), we get a palindrome (1543322233451).

The spelling of 1220001233230 in words is "one trillion, two hundred twenty billion, one million, two hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 331 383 662 766 1655 1915 3310 3830 4303 4979 8606 9958 21515 24895 43030 49790 74027 126773 148054 253546 370135 633865 740270 962351 1267730 1648049 1924702 3296098 4811755 8240245 9623510 16480490 24502937 28352341 49005874 56704682 122514685 141761705 245029370 283523410 318538181 368580433 637076362 737160866 1592690905 1842902165 3185381810 3685804330 9384624871 18769249742 46923124355 93846248710 122000123323 244000246646 610000616615 1220001233230