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38122201112212 = 2277326969333767
BaseRepresentation
bin10001010101100000001000…
…10000010101111010010100
311222222110001202000212011101
420222300010100111322110
514444043231441042322
6213025033013115444
711013144452621560
oct1052600420257224
9158873052025141
1038122201112212
1111168597758608
124338408028b84
131836ba624b419
1495b1a541c6a0
154619a5081327
hex22ac04415e94

38122201112212 has 48 divisors (see below), whose sum is σ = 77576166339840. Its totient is φ = 16054372184832.

The previous prime is 38122201112207. The next prime is 38122201112213. The reversal of 38122201112212 is 21221110222183.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38122201112213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34117048 + ... + 35216719.

It is an arithmetic number, because the mean of its divisors is an integer number (1616170132080).

Almost surely, 238122201112212 is an apocalyptic number.

It is an amenable number.

38122201112212 is an abundant number, since it is smaller than the sum of its proper divisors (39453965227628).

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

38122201112212 is a wasteful number, since it uses less digits than its factorization.

38122201112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69334120 (or 69334118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 38122201112212 its reverse (21221110222183), we get a palindrome (59343311334395).

The spelling of 38122201112212 in words is "thirty-eight trillion, one hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 73 146 269 292 511 538 1022 1076 1883 2044 3766 7532 19637 39274 78548 137459 274918 549836 69333767 138667534 277335068 485336369 970672738 1941345476 5061364991 10122729982 18650783323 20245459964 35429554937 37301566646 70859109874 74603133292 130555483261 141718219748 261110966522 522221933044 1361507182579 2723014365158 5446028730316 9530550278053 19061100556106 38122201112212