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120212122122 = 23247149994793
BaseRepresentation
bin110111111110100110…
…0110110101000001010
3102111021210022112100100
41233331030312220022
53432143300401442
6131120310550230
711453653115151
oct1577514665012
9374253275310
10120212122122
1146a88677664
121b36a968376
13b44a127111
145b655a2598
1531d890684c
hex1bfd336a0a

120212122122 has 48 divisors (see below), whose sum is σ = 266181552000. Its totient is φ = 39191562816.

The previous prime is 120212122109. The next prime is 120212122123. The reversal of 120212122122 is 221221212021.

Adding to 120212122122 its reverse (221221212021), we get a palindrome (341433334143).

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120212122095 and 120212122104.

It is not an unprimeable number, because it can be changed into a prime (120212122123) 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, 1220758 + ... + 1315550.

It is an arithmetic number, because the mean of its divisors is an integer number (5545449000).

Almost surely, 2120212122122 is an apocalyptic number.

120212122122 is an abundant number, since it is smaller than the sum of its proper divisors (145969429878).

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

120212122122 is a wasteful number, since it uses less digits than its factorization.

120212122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96347 (or 96344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 120212122122 in words is "one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 1499 2998 4497 8994 13491 26982 70453 94793 140906 189586 211359 284379 422718 568758 634077 853137 1268154 1706274 4455271 8910542 13365813 26731626 40097439 80194878 142094707 284189414 426284121 852568242 1278852363 2557704726 6678451229 13356902458 20035353687 40070707374 60106061061 120212122122